Ash emissions from Semeru volcano reach 4.6 km (15 000 feet) a.s.l., Indonesia
On July 5, 2025, Semeru volcano in Indonesia emitted volcanic ash that reached up to 4.6 km (15 000 feet) above sea level.
Ash plume reaches 3.7 km (12 100 feet) a.s.l. at Raung volcano, Indonesia
An ash plume rose to 3.7 km (12 100 feet) above sea level at Raung volcano, Indonesia, reported on July 5, 2025.
Continuous ash emissions from Sangay volcano reach 6.7 km (22 000 feet) a.s.l., Ecuador
Continuous volcanic ash emissions from Sangay volcano in Ecuador reached 6.7 km (22 000 feet) above sea level on July 5, 2025.
Volcanic ash emissions from Ibu volcano reach 2.1 km (6 900 feet) a.s.l., Indonesia
Discrete ash emissions from Ibu volcano, Indonesia, reached up to 2.1 km (6 900 feet) above sea level on July 5, 2025.
Volcanic ash emissions at Semeru volcano reach 4.6 km (15 000 feet) a.s.l., Indonesia
Volcanic ash reached up to 4.6 km (15 000 feet) above sea level at Semeru volcano, Indonesia, on July 5, 2025, with intermittent discrete emissions observed.
Ash emissions from Semeru volcano reach 4.6 km (15 000 feet) a.s.l., Indonesia
Intermittent ash emissions from Semeru volcano in Indonesia were reported at 4.6 km (15 000 feet) a.s.l. on July 4, 2025.
ALERT: Geomagnetic K-index of 4 Alert issued on July 4
A Geomagnetic K-index of 4 Alert has been issued for July 4, 2025. The threshold was reached at 22:48 UTC during the 21:00–24:00 UTC synoptic period.
M5.4 earthquake – Kagoshima Prefecture, Japan
A shallow earthquake of M5.4 occurred about 104 km (65 miles) north-northwest of Tatsugō, Japan, at 21:29 UTC on July 4, 2025. The hypocenter was at a depth of 10.0 km (6.2 miles).
Volcanic ash emissions at Semeru volcano reach 4.6 km (15 000 feet) a.s.l., Indonesia
Semeru volcano in Indonesia produced ash emissions reaching 4.6 km (15 000 feet) above sea level on July 4, 2025, with intermittent activity ongoing.
M5.6 earthquake – Tierra del Fuego, Argentina
An M5.6 earthquake was recorded 253 km (157 miles) south-southeast of Ushuaia, Argentina at 15:47 UTC on July 4, 2025. The shallow quake struck at a depth of 10.0 km (6.2 miles).
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