Vulkan-Monitor

Augenblicklich aktive Vulkane:

Kirishimayama (Japan) - Report for 2 July-8 July 2025 - NEW

Datum: Wed, 09 Jul 2025 04:10:57 -0400

Beschreibung:

The Japan Meteorological Agency (JMA) reported that eruptive activity continued at Shinmoedake (Shinmoe peak, a stratovolcano of the Kirishimayama volcano group) during 2-8 July. The number of volcanic earthquakes with epicenters directly beneath Shinmoedake had been fluctuating since late October 2024, though the rates continue to be high. Beginning at 1025 on 27 June continuous gas-and-ash plumes with variable densities rose to various heights above the vents on the crater floor, at least through 9 July. The plumes generally rose 300-2,800 m above the crater rim, and occasionally higher, and drifted in various directions, causing periodic ashfall in areas downwind. On 2 July a large amount of ash fell in Makizonocho (14 km SW), Kirishima City, obscuring the white lines on the roads. At 1349 on 3 July the plumes rose 5 km above the crater rim and drifted S; the taller plume was associated with rumbling sounds. During a field survey in Kobayashi City that same day observers heard loud rumbling, and a notable amount of ash again fell in Makizonocho. At 1640 on 4 July plumes rose 3.3 km above the crater rim. Ashfall during 3-4 July was confirmed in Kagoshima City, Kirishima City, Yusui (16 km WNW), Aira City 931 km SW), Minamisatsuma City, and Hioki City (55 km SW) in Kagoshima Prefecture. On 7 July sulfur dioxide emissions averaged 900 tons per day. The Alert Level remained at 3 (on a 5-level scale) and the public was warned to exercise caution within 3 km from Shinmoedake Crater.

Source: Japan Meteorological Agency (JMA)

Lewotobi (Indonesia) - Report for 2 July-8 July 2025 - NEW

Datum: Wed, 09 Jul 2025 04:10:57 -0400

Beschreibung:

The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that an explosive eruption from Lewotobi Laki-laki at 1105 on 7 July was accompanied by loud booming sounds. A dense gray-to-black ash plume rose to around 18 km above the summit and drifted NE, N. and NW. Photos of the eruption showed pyroclastic flows descending the N and NE flanks as far as 5 km. The eruption lasted about six and a half minutes based on seismic data. According to the Badan Nacional Penanggulangan Bencana (BNPB) ashfall was reported in several villages in the Wulanggitang District including Nawakote, Klatanlo, Hokeng Jaya, Boru, and Pululera. A smaller explosion at 1519 generated a dense gray ash plume that rose around 1 km above the summit and drifted W. Another significant event at 1932 produced a dense gray-to-black ash plume that rose about 13 km above the summit and drifted W and NW. Incandescent material descending multiple flanks was visible in a webcam image starting at 1944. News outlets reported that some flights from the El Tari Kupang Airport to Frans Seda Maumere Airport, along with a few dozen international flights, were cancelled. The Komodo International Airport, around 300 km W, was closed during 7-8 July. The Alert Level remained at 4 (on a scale of 1-4) and on 25 June the exclusion zone was reduced to 6 km from the center of Laki-laki and 7 km in a semicircle clockwise from the SW to the NE.

Sources: Antara News,Antara News,Antara News,Antara News,Badan Nacional Penanggulangan Bencana (BNPB) ,Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)

Lewotolok (Indonesia) - Report for 2 July-8 July 2025 - NEW

Datum: Wed, 09 Jul 2025 04:10:57 -0400

Beschreibung:

The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that the eruption at Lewotolok intensified during 27 June-2 July, with activity that included taller white, gray, and black ash plumes that rose 1.2 km above the summit. Incandescent material was ejected in all directions, as far as 1.5 km N and ENE, and caused vegetation fires on the N and NE flanks. Rumbling and booming sounds were reported. At 2000 on 2 July the Alert Level as raised to 3 (on a scale of 1-4) and the public was warned to stay 3 km away from the summit. Daily gray, white-to-gray, or gray-to-black ash plumes rose 400-700 m above the summit of the cone and drifted NW, W, and SW during 2-8 July. Clear nighttime webcam images showed incandescent material both at the summit cone and being ejected above the cone. Lava flows on the flanks of the main volcano edifice were also incandescent.

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)

Aira (Japan) - Report for 2 July-8 July 2025

Datum: Wed, 09 Jul 2025 04:10:57 -0400

Beschreibung:

The Japan Meteorological Agency (JMA) reported ongoing eruptive activity at Minamidake Crater (Aira Caldera?s Sakurajima volcano) during 30 June-7 July. Nightly crater incandescence was visible in webcam images. One small eruptive event was recorded on 30 June. On 2 July sulfur dioxide emissions were slightly high, averaging 1,500 tons per day. Eruptive events during 6-7 July produced ash plumes that rose as high as 3 km above the crater rim. Plumes were continuously emitted during 1346-2310 on 6 July and during 0224-0840 on 7 July. The Alert Level remained at 3 (on a 5-level scale), and the public was warned to be cautious within 2 km of both the Minimadake and Showa craters.

Source: Japan Meteorological Agency (JMA)

Asosan (Japan) - Report for 2 July-8 July 2025

Datum: Wed, 09 Jul 2025 04:10:57 -0400

Beschreibung:

The Japan Meteorological Agency (JMA) reported that the amplitude of volcanic tremors at Asosan began to increase at around 1150 on 4 July, signaling an increasing unrest. Sulfur dioxide gas emissions were low, averaging 300-600 tons per day. White plumes rose 300 m above the crater rim. At 1300 the Alert Level was raised to 2 (on a scale of 1-5) and the public was warned to stay at least 1 km away from Nakadake Crater.

Source: Japan Meteorological Agency (JMA)