Sakurajima Volcano Erupts in Southern Japan, Sending Ash 3.4 km High
Japan’s most active volcano erupted for the second time in four months, with consecutive blasts over the weekend prompting a level 3 alert and warnings of large volcanic projectiles
TOKYO — April 13, 2026 — Japan’s Sakurajima volcano erupted explosively over the weekend, sending plumes of ash soaring more than 3,400 meters (11,150 feet) into the sky in the first major eruption since December 2025, the Japan Meteorological Agency (JMA) has confirmed .
The eruption began shortly after noon on Saturday, April 11, marking the second significant blast in four months. The activity continued into Sunday and early Monday, with the volcano erupting explosively on consecutive days for the first time this year . A powerful “explosive eruption” was also recorded at 4:49 a.m. on Monday, April 13, with large volcanic rocks ejected up to 1,200 meters from the crater, according to local media reports .
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Volcanic Activity and Alert Level
Sakurajima, located in Kagoshima Prefecture on the southern island of Kyushu, is one of Japan’s most active volcanoes. The weekend’s eruption included two significant blasts on April 11 and April 12, with video footage from the Yunohira Observation Deck capturing the explosive event as dark ash clouds billowed from the Minamidake summit crater .
The Japan Meteorological Agency has maintained Volcanic Alert Level 3 — prohibiting entry into the mountain — with authorities warning of large projectiles and pyroclastic flows within 2 kilometers (1.2 miles) of the crater . The agency reported that the eruption helped ease most of the crustal deformation that had been building up inside the volcano .
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According to the JMA, large volcanic rocks were scattered up to 1,000 to 1,200 meters from the crater during the eruptions, while ashfall warnings were issued for areas within a 2-kilometer radius .
Transportation Disruptions
The volcanic activity has caused disruptions to transportation in the region. Airlines have reported flight delays and cancellations at Kagoshima Airport due to ash clouds affecting visibility . Local transport has also been impacted, with reduced visibility creating hazardous driving conditions on roads covered by ash and debris .
Authorities are urging visitors and residents to avoid restricted areas near the volcano, follow official safety guidelines, and monitor updates from local authorities. Travelers to the region have been advised to prepare for continued delays or unexpected cancellations, especially for flights and road transport .
Scientific Context and Frequency
Sakurajima is known for its frequent eruptions, and conditions can change rapidly. Officials warn that another eruption could occur, making the situation unpredictable . The volcano previously erupted in December 2025, and prior to that in early 2026, with Monday’s blast marking the third explosive eruption of the year .
The Japan Meteorological Agency continues to monitor the volcano closely, noting that while the recent eruption has relieved some accumulated pressure, further activity remains possible. Residents in Kagoshima and surrounding areas have been advised to remain vigilant and take precautions against ashfall and falling volcanic rocks .
SOURCES / INPUTS
- cna.al: Volcano erupts again in Japan/ Giant cloud of smoke and ash in the air
- The Peninsula Qatar: Japan volcano erupts sending plumes of ash 3.4 km high
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