An earthquake measuring M5.5 was registered 157 km (98 miles) east of Kokopo, Papua New Guinea at 14:12 UTC on September 5, 2026. The hypocenter was located at a depth of 114.4 km (71.1 miles).
An M5.5 earthquake struck 156 km (97 miles) east of Kuril’sk, Russia, at 23:52 UTC on September 4, 2026. The event occurred at a depth of 36.4 km (22.6 miles), USGS reports.
A high-level ash cloud from Krakatau volcano, Indonesia, was observed at 14.6 km (48 000 feet) altitude moving west at 16:40 UTC on September 4, 2026.
An Alert for Electron 2 MeV Integral Flux exceeding 1,000 pfu was issued on September 4, 2026. The Alert remains in effect after exceeding threshold levels.
A minor C7.1 solar flare erupted at 11:19 UTC on September 4, 2026.
A moderate M1.2 solar flare erupted at 07:53 UTC on September 4, 2026.
A shallow M5.5 earthquake was registered 100 km (62 miles) south of Nikolski, Alaska at 20:21 UTC on September 3, 2026. The event occurred at an estimated depth of 10.0 km (6.2 miles).
A minor C7.0 solar flare erupted at 14:46 UTC on September 3, 2026.
A shallow M6.3 earthquake struck 84 km (52 miles) south-southwest of Nikolski, Alaska, at 11:17 UTC on September 3, 2026. The earthquake was recorded at a depth of 35.0 km (21.7 miles), according to USGS data.
A strong M6.2 earthquake was recorded 105 km (65 miles) south-southwest of Nikolski, Alaska at 11:17 UTC on September 3, 2026. The event occurred at a depth of 78.0 km (48.5 miles), according to USGS data.
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