Earthquake & Volcano Monitor — 2026-09-03
Mount Sinabung in North Sumatra has erupted for the first time in five years, prompting a Level III alert and evacuations in Indonesia. Meanwhile, Kīlauea in Hawaii continues its ongoing eruptive activity with lava fountains at the summit.
Earthquake & Volcano Monitor — 2026-09-03
Seismic Activity
No significant new seismic events reported in the past 24 hours.
Volcanic Watch
Mount Sinabung Erupts in Indonesia
Indonesia’s Geological Agency raised Mount Sinabung to Level III (Siaga) alert status following an eruption on August 31, 2026. The event sent an ash column approximately 3,500 meters (11,500 feet) above the summit, affecting the Karo Regency in North Sumatra. This marks the first eruption of Sinabung in five years. Authorities have warned of potential larger blasts, citing harmonic tremors and vegetation yellowing as precursor signals. Evacuations and flight disruptions have been implemented in response to the heightened activity.
The Geological Agency head, Lana Saria, emphasized the need for continued vigilance due to the unstable volcanic activity.
Kīlauea Continues Eruptive Activity
In Hawaii, the USGS Hawaiian Volcano Observatory reports that Kīlauea’s summit eruption continues, specifically Episode 54. Lava fountains remain active, and the volcano maintains an Orange Color Code. The observatory continues to monitor the situation closely in coordination with Hawai‘i Volcanoes National Park and local civil defense agencies.
Earth Science
No recent research findings or preparation tips available for this section.
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