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Sakurajima

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Sakurajima
View of Sakurajima from mainland Kagoshima, 2009
Highest point
Elevation1,117 m (3,665 ft)
Coordinates31°34′50″N 130°39′29″E / 31.58056°N 130.65806°E / 31.58056; 130.65806
Geography
Sakurajima is located in Japan
Sakurajima
Sakurajima
Sakurajima is located in Kagoshima Prefecture
Sakurajima
Sakurajima
Sakurajima (Kagoshima Prefecture)
Geology
Mountain typeSomma-stratovolcano
Last eruption8 May 2026

Sakurajima (Japanese: 桜島, lit.'Cherry Blossom Island') is an active stratovolcano, formerly an island and now a peninsula, in Kagoshima Prefecture in Kyushu, Japan.[1] It is the most active volcano in Japan.[2]

As of November 2025, the volcanic activity continues,[3][4] dropping volcanic ash on the surroundings. Earlier eruptions built the white sand highlands in the region. On 13 September 2016, a team of experts from Bristol University and the Sakurajima Volcano Research Centre in Japan suggested that the volcano could have a major eruption within 30 years; since then many eruptions have occurred.[5][4]

Sakurajima has a population of a few thousand residents, formerly incorporated as Sakurajima town, with a number of schools, shrines, and shops on the island. It is serviced by the Sakurajima Ferry which runs 24/7. It is a tourist destination known for its onsen, local pottery made from volcanic ash, and produce such as the Sakurajima daikon radish and Sakurajima komikan orange which grow in the immensely fertile volcanic soil.

Sakurajima has many different natural areas due to its eruptive history and the ecosystems where recent eruptions have taken place have been researched as an example of ecological succession.

Geography

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Sakurajima is a stratovolcano. Its summit has three peaks, Kita-dake (northern peak), Naka-dake (central peak) and Minami-dake (southern peak) which has been recently active.

Kita-dake is Sakurajima's highest peak, rising to 1,117 m (3,665 ft) above sea level. The mountain is in a part of Kagoshima Bay known as Kinkō-wan. The lava flows of the 1914 eruption connected it with the Ōsumi Peninsula.[6] The former island is part of the city of Kagoshima which is only 4 km (2.5 mi) across the bay.[7] The surface of this volcanic peninsula is about 77 km2 (30 sq mi).

A map of Sakurajima in 1902, showing it as a distinct island.

Sakurajima is part of the Kirishima-Kinkowan National Park, and its lava flows are a major tourist attraction. The area around Sakurajima contains several hot spring resorts. One of the main agricultural products of Sakurajima is a huge basketball-sized white radish (Sakurajima daikon).[8]

Geology

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Sakurajima is in the 25 km (16 mi)-wide Aira caldera, which formed in an enormous "blow-out-and-cave-in" eruption around 28,000 years ago.[9] Several hundred cubic kilometres of ash and pumice were ejected, causing the magma chamber underneath the erupting vents to collapse. Tephra fell as far as 1,000 km (620 mi) from the volcano. Sakurajima is an active vent of the same Aira caldera volcano.

Sakurajima was initially formed about 3000 years later and has had 17 large-scale pumice eruptions since.[9] It is about 8 km (5 mi) south of the centre of the caldera, on its rim.[9] Most of the lavas and tephra erupted have an andesitic-dacitic composition but there are some rhyolite composition eruptives.[10]

Volcanic activity at Kita-dake ended around 4,900 years ago: later eruptions. have been centered on Minami-dake.[11] Initially since 2006, activity was centred on Showa crater, to the east of the summit of Minami-dake,[12] but by 2025 had moved to the summit crater.[4]

History

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Prehistoric eruptions

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After the volcano formed about 26,000 years ago BP, until recorded history times only the largest eruptions can be identified.[9] Pumice layers P4 to P17 include the P14 vary thick layer from a VEI 6 eruption over 10,000 years ago.[9]

Historic eruptions

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Its first eruption in recorded history was in 963 AD.[13] Most of its eruptions are Strombolian,[13] affecting only the summit areas, but larger Plinian eruptions have occurred in 1471–1476, 1779–1782 and 1914.[14]

1914 eruption

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1914 Sakurajima eruption
Sakurajima erupting in 1914
Start date11 January 1914
TypePeléan
VEI4
ImpactPre-eruption earthquakes killed 35 people and the eruption killed 23 people;[15] caused an evacuation and significant changes to the local topography.

The 1914 eruption (also known as Sakura-Jima eruption[6] or Taisho eruption[16]) began on 11 January and was the most powerful in twentieth-century Japan. The volcano had been dormant for over a century until 1914.[17] Almost all residents had left the island in the previous days; several large earthquakes had warned them that an eruption was imminent.

Initially, the eruption was very explosive, generating eruption columns and pyroclastic flows, but after a very large earthquake on 12 January, and another the day after, it became effusive, generating a large lava flow.[17] Ash fall occurred as far as the north of Honshu.[16] The 12 January earthquake killed 35, and in total, 58 people died.[15][17] Lava flows filled the narrow strait between the island and the mainland, turning it into a peninsula. It transpired that about 90% of the total magma volume in dense-rock equivalent was lava.[18]

Lava flows are rare in Japan—because the silica content of the magmas is high, explosive eruptions are far more common[19]—but the lava flows at Sakurajima continued for months.[17] The island grew, engulfing several smaller islands nearby, and eventually became connected to the mainland by a narrow isthmus. Parts of Kagoshima Bay became significantly shallower, and it made tides higher.[17]

During the last stages of the eruption, emptying of the underlying magma chamber sank the centre of the Aira Caldera by about 60 cm (24 in).[17] This showed that Sakurajima draws its magma from the same magma reservoir that fed the ancient caldera-forming eruption.[17] The eruption partly inspired a 1914 movie, The Wrath of the Gods, centering on a family curse that ostensibly causes the eruption.

Recent activity

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Topographic map of Sakurajima and its surroundings

Sakurajima's activity became more prominent in 1955, and the volcano has been erupting almost constantly ever since. Thousands of small explosions happen each year, throwing ash to heights of up to a few kilometers above the mountain. The Sakurajima Volcano Observatory was set up in 1960 to monitor these eruptions.[13] Between 1955 and 2024, 15,057 eruptions from the Minamidake and the Showa craters were observed.[18]

Monitoring of the volcano and predictions of large eruptions are particularly important because it is in a densely populated area, with the city of Kagoshima's 680,000 residents just a few kilometers from the volcano. The city conducts regular evacuation drills, and a number of shelters have been built where people can take refuge from falling volcanic debris.[20]

In light of the dangers it presents to nearby populations, Sakurajima was designated a Decade Volcano in 1991, identifying it as worthy of particular study as part of the United Nations' International Decade for Natural Disaster Reduction.[21]

Sakurajima erupting on 10 March 2009

On 10 March 2009, Sakurajima erupted, sending debris up to 2 km (1.2 mi). An eruption had been expected following a series of smaller explosions over the weekend. It is not thought there was any damage caused.[22] An eruption occurred from the Minami-dake summit crater at 5:38 on Sunday, 9 August 2010, sending debris up to 5000 m (16,000 ft).[23] In 2011 and 2012, Sakurajima experienced several significant eruptions; volcanic activity continued into 2013.[24] On 18 August 2013, the volcano erupted from Showa crater and produced its highest recorded plume of ash since 2006, rising 5,000 metres high and causing darkness and significant ash falls on the central part of Kagoshima city. The eruption occurred at 16:31 and was the 500th eruption of the year.[25] In August 2015, Japan's meteorological agency issued a level 4 emergency warning, which urges residents to prepare to evacuate.[26]

Scientists warned that a major eruption could soon take place at the volcano;[27] it eventually did erupt around 20:00 on 5 February 2016.[28] After a long pause of eruptions at the vent, the eruptions abruptly stopped there and returned to the Showa crater, on 4 April 2016, some 8–9 days preceding major earthquakes on the Median Tectonic Line near Kumamoto, Japan.[29] Then, three months later, on 26 July, it spewed volcanic ash 5,000 m (16,000 ft) into the air.[30]

On 3 October 2020, at 07:35 UTC, the volcano erupted once again, this time from the Aira caldera. A volcanic ash advisory for aviation was issued by the Volcanic Ash Advisory Center Tokyo (VAAC) at 07:43 UTC, showing the ash cloud to be stationary and reaching FL100 (10,000 feet).[31] On 24 July 2022, at 20:05 JST, an explosive eruption occurred at the summit crater of the volcano, and cinders scattered up to 2.5 km (1.6 mi) from the crater.[32][33] Following this eruption, at 20:50 JST, the Japan Meteorological Agency raised the eruption alert level from Level 3 to Level 5, the highest level, and urged maximum precaution and evacuation.[32] This was the first time an eruption alert level 5 has been issued for Sakurajima.[34]

On 9 February 2023, an eruption occurred at the Showa crater on Sakurajima at 10:52 JST.[35] The plumes had risen to 1,000 metres (3,300 feet) at 11:10 JST, according to the Kagoshima Meteorological Office.[35] People in a 2 km (1.2 mi) radius were sent a warning by the local weather observatory against pyroclastic flows and falling rocks.[36] On 14 February 2024, an eruption occurred at the southern peak's Minamidake crater on Sakurajima at 18:33 JST, emitting plumes of over 5 kilometres (3.1 miles) in height and spewing rocks as far as 1.3 km (0.81 mi) away.[37] Minamidake crater again erupted on 18 October 2024, with a plume above 4 km (2.5 mi).[4] Between 15 and 16 May 2025, multiple small eruptions with volcanic plumes up to 3 km (1.9 mi) high occurred disturbing local air travel.[38] On 16 November 2025, Minamidake crater erupted at 00:57 JST with an eruption plume that reached 4,400 m (14,400 ft) high.[4] Volcanic rocks from the eruption reached as far as the fifth station, some 1.2 km (0.75 mi) from the crater and a level 3 alert was issued.[39] On 11 April 2026, another eruption occurred at the Minamidake crater at 12:04 JST. The plume reached a height of 3,400 m (11,200 ft) with large volcanic rocks reaching the volcano's 7th station ejected. Alert level 3 remains in effect.[40] On 8 May 2026, Minamidake crater erupted creating a 3,500-metre (11,500 ft) high eruption column.[41]

Summary of eruptive history

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Summary of known eruptions
Start Date[42] Years before 1950 (BP)[42] VEI[42] Lava volume
(km3)
Tephra volume
(km3)
Comment
2017 25 March 2017 - 3 - - Explosive with effusive eruption continuing.[42] Minamidake crater M3 phase.[9]
1955 13 October 1955 - 3 - - Explosive with effusive eruption continuing until 22 August 2016.[42] Contains Minamidake crater M1 phase until 1971 and M2 phase from 1972, and from 2006 to 2017 eruptions at Showa crater.[9]
1954 16 November 1954 ± 15 - - - - Uncertain details 16 December 1954± 15.[42]
1950 29 June 1950 0 1 - - Explosive with effusive eruption continuing until 9 September 1950.[42]
1948 27 July 1948 2 1 - - Explosive with effusive eruption on single day.[42]
1946 January 1946 4 2 0.18[9] - Eruption ended November 1946.[42]
1942 1 July 1942 8 1 - - Explosive with effusive eruption on single day.[42]
1941 April 1941 9 2 - - Explosive with effusive eruption ended 26 August 1941[42]
1940 24 April 1940 10 2 - - Explosive with effusive eruption ended 9 July 1940.[42]
1939 26 November 1939 11 2 - - Explosive with effusive eruption ended about 12 November 1939.[42]
1938 25 February 1938 12 2 - - Explosive with effusive eruption ended 31 March 1938.[42]
1935 20 September 1935 15 1 - - Explosive with effusive eruption ended 24 September 1935.[42]
1914 12 January 1914 36 4 1.34[9] 0.5[9] Explosive (P1 tephra) with effusive eruption of Taisho lava ended in May 1915.[42][10]
1899 24 September 1899 51 - - - Uncertain details, ended 25 September 1899.[42]
1860 1860 90 1 - - Explosive with effusive eruption.[42]
1799 27 March 1799 151 2 - - Explosive with effusive eruption.[42]
1797 1797 153 2 - - Explosive with effusive eruption.[42]
1794 1794 156 2 - - Explosive with effusive eruption[42]
1791 11 September 1791 159 2 - - Explosive with effusive eruption.[42]
1790 29 July 1790 160 2 - - Explosive with effusive eruption.[42]
1785 20 November 1785 165 2 - - Explosive with effusive eruption.[42]
1783 3 September 1783 167 3 Explosive with effusive eruption continuing until 22 August 2016.[42]
1782 18 January 1782 168 2 - - Explosive with effusive eruption may have VEI less than 2.[42]
1779 8 November 1779 171 4 1.7[10] 0.22[10] Explosive (P2 tephra) with effusive eruption of An-ei lava ended in May 1781.[42][10]
1756 9 September 1756 194 2 - - Explosive with effusive eruption.[42]
1749 September 1749 201 2 - - Explosive with effusive eruption.[42]
1742 6 April 1742 208 2 - - Explosive with effusive eruption possibly less than VEI 2.[42]
1706 January 1706 244 2 - - Explosive with effusive eruption possibly less than VEI 2.[42]
1678 1 March 1678 272 2 - - Explosive with effusive eruption possibly less than VEI 2.[42]
1642 6 April 1642 308 2 - - Explosive with effusive eruption possibly less than VEI 2.[42]
1478 23 September 1478 472 2 - - Explosive with effusive eruption possibly less than VEI 2.[42]
1471 3 November 1471 479 5 0.53[10] 0.49[10] Explosive (P3 tephra) with effusive eruption of Bunmei lava possibly less than VEI 5 ending on or after 8 October 1476.[42][10]
1468 1468 482 2 - - Explosive with effusive eruption.[42]
778 778 1172 0 - - Explosive with effusive eruption.[42]
766 20 July 766 1184 3 Explosive with effusive eruption.[42]
764 January 764 1186 4 - - Explosive with effusive eruption.[42] First recorded large–scale historical eruption.[9]
716 716 1234 3 Explosive with effusive eruption continued until 718.[42]
708 708 1242 3 Explosive with effusive eruption.[42]
-650 650 BCE 2600 - - - Explosive with effusive eruption.[42]
-1050 1050 BCE 3000 - - - Explosive with effusive eruption.[42]
-2050 2050 BCE 4000 - - - Explosive with effusive eruption[42]
-2900 2900 BCE 4850 4 - 0.18[10] Explosive (P5 tephra)[10] with effusive eruption.[42]
-3500 3500 BCE 5450 - - - Explosive with effusive eruption.[42]
-4800 4800 BCE 6750 - - - Explosive with effusive eruption,[42] Minami-dak activity.[9]
-5400 5400 BCE 7350 - - - Explosive with effusive eruption.[42]
-5950 5950 BCE 7900 - - - Explosive with effusive eruption.[42]
-6050 6050 BCE 8000 5 - - Explosive with effusive eruption.[42]
-6350 6350 BCE 8300 - - - Explosive (P11 tephra) with effusive eruption of Gongenyam lava.[42][10]
-7750 7750 BCE 9700 - - - Explosive (P12 tephra) with effusive eruption of Harutayama lava[42][10]
-8050 8050 ± 1000 BCE 10000 6 - - P13 tephra and Kitadake lava (Warishizaki lava)[10]

Eruptive risk

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A monitoring system with formalised warnings since 2007 is in place, and evacuation drills have been held in the Sakurajima immediate area since 1970.[9] Since 2024 a predictive model based on local ground inflation has been in place at the local volcanic observatory that may give short term warning of eruption and ash fall distribution from contemporary minor eruptions.[18] An impact assessment of a eruption of the scale of the 1914 eruption predicts the disruption with damage multiple critical infrastructure features, including airports, roads, power networks, and buildings up to a Japanese national level.[16] The volcano is predicted to accumulate sufficient magma in 130 years to allow a repeat of this scale eruption.[16] The ash fall thickness of such an eruption would have about a 5% probability of temporarily closing the six largest airports in Japan and above a 80% probability of closing the major Kyushu airports of Miyazaki and Kagoshima.[16] Road and rail transport disruption would be limited to Kyushu and electricity supply disruption to souther Kyushu.[16] The combination of an eruption and a high rainfall weather event would be particularity problematical due to electrical arc flash events.[16] The ash fall would be most disruptive to local property and people if an eruption occurred in winter or during a has the local ash fall is likely to be heavier then.[16]

Culture

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A sculpture of a man's head screaming at the sky with a guitar by its side, carved out of volcanic rock.
Sculpture of Nagabuchi at the site of the All Night Concert on Sakurajima.

Sakurajima is a novella written in 1946 by the Japanese writer Haruo Umezaki, about a disillusioned Navy officer stationed on the island towards the end of World War II as American planes bomb Japan. The story is one of Umezaki's most famous works. It is based on his own experience; during World War II, he was stationed at a military cipher base in the nearby city of Kagoshima.

"Sakurajima" is also the name of a song by Japanese singer Tsuyoshi Nagabuchi. In 2004, Nagabuchi held an all night concert [ja] at a quarry of Sakurajima that attracted an audience of 75,000. Afterwards, a statue showing Nagabuchi screaming with a guitar was installed on the site of the concert.[43]

See also

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Notes

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  1. ^ Nussbaum, Louis-Frédéric. (2005). "Sakurajima" in Japan Encyclopedia, p. 814; see photo, caption -- Kagoshima after Sakurashima eruption, Illustrated London News. January 1914.
  2. ^ "Sakurajima, Japan's Most Active Volcano". nippon.com. Nippon Communications Foundation. 16 May 2018. Retrieved 2 August 2018.
  3. ^ "Sakurajima Volcano Volcanic Ash Advisory: VA AT 20210405/0420Z FL050 EXTD NE OBS VA DTG: 05/0420Z to 5000 ft (1500 m)". volcanodiscovery.com. Retrieved 6 April 2021.
  4. ^ a b c d e "Sakurajima volcano erupts in southwest Japan, creating 4,400 m-high plume". The Mainichi. Tokyo: Mainichi Shimbun. 16 November 2025. Retrieved 16 November 2025.
  5. ^ McCurry, Justin (13 September 2016). "New data points to major eruption of Japanese volcano". the Guardian. Retrieved 17 April 2018.
  6. ^ a b Davison, C. (21 September 1916). "The Sakura-Jima Eruption of January, 1914". Nature. 98 (2447): 57–58. Bibcode:1916Natur..98...57D. doi:10.1038/098057b0. S2CID 3964260.
  7. ^ Nussbaum, "Kagoshima prefecture" at p. 447.
  8. ^ "Touristic information on synapse.ne.jp". Retrieved 6 August 2007.
  9. ^ a b c d e f g h i j k l m Iguchi, M. (2025). "Integrated Research on Large-Scale Eruption at Sakurajima Volcano". Journal of Disaster Research. 20 (2): 186–196. Bibcode:2025JDisR..20..186I. doi:10.20965/jdr.2025.p0186.
  10. ^ a b c d e f g h i j k l m Nishihara, A.; Geshi, N.; Naruo, H. (2022). "Long-term change of the eruption activities of Sakurajima volcano, Japan, inferred from the fallout tephra deposits". Frontiers in Earth Science. 10. 988373. Bibcode:2022FrEaS..10.8373N. doi:10.3389/feart.2022.988373.
  11. ^ "Aira: Eruptive History". Global Volcanism Program. Smithsonian Institution. Retrieved 4 August 2007.
  12. ^ Iguchi, Masato (20 July 2013). "Forecasting volcanic activity of Sakurajima" (PDF). Proceedings of IAVCEI 2013 Scientific Assembly. Archived from the original (PDF) on 20 October 2013. Retrieved 18 August 2013.
  13. ^ a b c "Sakura-jima, Japan". VolcanoWorld. Oregon State University. Archived from the original on 1 August 2008. Retrieved 12 October 2008.
  14. ^ "Sakurajima at the Earthquake Research Institute, University of Tokyo". Archived from the original on 14 February 2008. Retrieved 3 August 2007.
  15. ^ a b "Japan's Sakurajima volcano due for major eruption within 30 years, say scientists". BBC News. 14 September 2016. Retrieved 24 February 2017.
  16. ^ a b c d e f g h Rahadianto, H.; Tatano, H.; Iguchi, M. (2025). "Multiscale impact assessment of massive ash fallout from a large eruption: What may happen if Sakurajima Taisho eruption occurs in contemporary Japan?". Journal of Disaster Science and Management. 1 (1). 24. doi:10.1007/s44367-025-00023-1.
  17. ^ a b c d e f g "The 1914 Sakurajima explosion at Volcanoworld". Archived from the original on 16 June 2008. Retrieved 3 August 2007.
  18. ^ a b c Iguchi, M.; Ishii, K. (2025). "Quantitative Forecasting of Volcanic Ashfall Prior to the Onset of Vulcanian Eruption by Combining Transport and Dispersion Simulation with Ground Deformation Observation at Sakurajima Volcano, Japan". Journal of Disaster Research. 20 (3): 259–268. Bibcode:2025JDisR..20..259I. doi:10.20965/jdr.2025.p0259.
  19. ^ "Japanese Volcanoes at the Northern Illinois University". Archived from the original on 19 August 2010. Retrieved 6 August 2007.
  20. ^ "Reuters report on Sakurajima explosion, June 5th 2006". Archived from the original on 28 September 2007. Retrieved 6 August 2007.
  21. ^ "Decade Volcano Sakurajima at the Earthquake Research Institute". Archived from the original on 19 August 2007. Retrieved 6 August 2007.
  22. ^ "Japan's Sakurajima volcano erupts". 10 March 2009. Retrieved 16 March 2012.
  23. ^ "桜島が噴火 噴煙が火口上5000mに上昇 噴煙量は多量(ウェザーニュース)". Yahoo!ニュース (in Japanese). Archived from the original on 8 August 2020. Retrieved 9 August 2020.
  24. ^ "Volcanic activity world-wide 16 November 2012: Ruapehu, Paluweh, Michael, Kilauea, Fuego, Santiaguito, Nevado del Ruiz, Reventador, Sakurajima, Mammoth Mountain (Long Valley), Ambrym, Nyiragongo". www.volcanodiscovery.com. Retrieved 17 April 2018.
  25. ^ "Sakurajima spews its highest volcanic column ever at 5,000 meters". Asahi Shimbun. 18 August 2013. Archived from the original on 4 March 2016. Retrieved 18 August 2013.
  26. ^ "Volcano alerts issued in Ecuador, Japan". 15 August 2015. Retrieved 16 August 2015.
  27. ^ Klemetti, Erik. "Sakurajima in Japan Might Be Headed Towards a Large Eruption". Wired. Retrieved 17 April 2018.
  28. ^ "Sakurajima volcano in Japan erupts". The Guardian. Associated Press. 5 February 2016. Retrieved 5 February 2016.
  29. ^ "Volcanic activity worldwide 4 Apr 2016: Popocatépetl volcano, Bromo, Turrialba, Sangay, Sakurajima,..." www.volcanodiscovery.com. Retrieved 17 April 2018.
  30. ^ "Kagoshima's Sakurajima volcano erupts, spews plume 5,000 meters up". 26 July 2016. Archived from the original on 18 April 2018. Retrieved 17 April 2018 – via Japan Times Online.
  31. ^ "Sakurajima Volcano Volcanic Ash Advisory: ERUPTED AT 20201003/0735Z FL100 STNR OBS VA DTG: 03/0730Z". www.volcanodiscovery.com. Retrieved 3 October 2020.
  32. ^ a b "桜島で噴火 噴火警戒レベル5に引き上げ 33世帯に避難指示 | NHK". NHK (in Japanese). Archived from the original on 24 July 2022. Retrieved 24 July 2022.
  33. ^ "MBCニュース | 桜島で噴火 噴石が東方向に2.4キロ飛ぶ". MBC. Archived from the original on 24 July 2022. Retrieved 24 July 2022.
  34. ^ "桜島で噴火が発生 気象庁が噴火速報を発表 火口上300mで雲に入る". WeatherNews (in Japanese). Retrieved 24 July 2022.
  35. ^ a b "Sakurajima volcano erupts in southwestern Japan". The Japan Times. 8 February 2023. Retrieved 9 February 2023.
  36. ^ "Sakurajima volcano in southwestern Japan erupts". Kyodo News+. Retrieved 9 February 2023.
  37. ^ "Sakurajima volcano in southwestern Japan erupts". Kyodo News+. Retrieved 14 February 2024.
  38. ^ "Japan's Sakurajima volcano erupts violently, disrupting flights and travel".
  39. ^ "Sakurajima Erupts; Plume Exceeds 4,000 Meters". The Japan News. The Yomiuri Shimbun. 16 November 2025. Retrieved 16 November 2025.
  40. ^ "桜島で今年初の爆発 噴煙3400メートル、火口から大きな噴石7合目まで飛ぶ". Minami-Nippon Shimbun (in Japanese). 11 April 2026. Retrieved 12 April 2026.
  41. ^ 桜島で爆発的な噴火 噴煙が3500メートルの高さまで上がる [Explosive eruption in Sakurajima, smoke rises to a height of 3,500 meters]. NHK (in Japanese). 8 May 2026. Retrieved 10 May 2026.
  42. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az "Aria". Global Volcanism Program. Smithsonian Institution. Retrieved 29 March 2026.
  43. ^ Matthew Holmes (8 April 2012). "Moving and shaking on Sakurajima". The Japan Times.

References

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Further reading

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