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Volcanoes Today, 2 Aug 2025: Klyuchevskoy volcano, Semeru, Ibu, Dukono, Marapi, Reventador, Sangay, Kirishima

Sat, 2 Aug 2025, 07:00 1754118004 | BY: VN

Satellite image of Klyuchevskoy volcano on 2 Aug 2025

Satellite image of Kirishima volcano on 2 Aug 2025

Satellite image of Ibu volcano on 2 Aug 2025

Satellite image of Lewotobi volcano on 2 Aug 2025

Satellite image of Semeru volcano on 1 Aug 2025

Satellite image of Marapi volcano on 2 Aug 2025

Satellite image of Dukono volcano on 2 Aug 2025

Klyuchevskoy (Kamchatka): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 30000 ft (9100 m) altitude or flight level 300 and is moving at 30 kts in E direction.
The full report is as follows: ERUPTION AT 20250802/0423Z FL300 EXTD S-E REPORTED OBS VA DTG:02/0440Z to 30000 ft (9100 m)

Kirishima (Kyushu): Volcanic Ash Advisory Center Tokyo (VAAC)

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<!–div style="font-size:14px;text-align:center;border:3px solid blue;border-radius:5px;padding:3px;margin:5px;background:#eee"><a href="https://www.volcanoesandearthquakes.com/app/volcano-report.php?volcanoId=62" style="text-decoration:none" target="_blank" rel="noopener noreferrer nofollow" title="Share a volcano (activity) report, submit a photo or other interesting news!” onclick=”window.open(this.href,’Volcano Report’,’status=0,toolbar=0,location=0,directories=0,menubar=0,resizable=1,scrollbars=1,height=500,width=450′);return false”>Send Volcano Report</div–> Stratovolcano 2891 m (9,485 ft)
Western Sumatra, Indonesia, -0.39°S / 100.46°E
Current status: erupting (4 out of 5) Marapi volcano eruptions:
2011-ongoing, 2004 (Aug), 2001, 2000, 1999, 1987-94, 1984, 1984, 1983, 1982, 1980, 1975-79, 1973, 1970-71, 1968(?), 1967, 1966, 1958, 1958, 1954-57, 1950-52, 1949, 1949, 1943, 1932, 1930, 1929, 1927, 1925, 1919, 1918, 1918, 1917, 1916, 1915, 1913, 1911, 1910, 1907-08, 1905, 1904, 1889, 1888, 1886, 1885, 1883, 1878(?), 1883, 1876-77, 1876, 1871, 1871, 1863, 1861, 1855-56, 1854, 1845, 1833-34, 1822, 1807, 1770
Typical eruption style
Small to moderate sized explosions

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From 02/08/2025 to 02/08/2025, a Tropical Depression (maximum wind speed of 74 km/h) THIRTEEN-25 was active in NWPacific. The cyclone affects these countries: [unknown] (vulnerability [unknown]). Estimated population affected by category 1 (120 km/h) wind speeds or higher is 0 (0 in tropical storm).

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