Earthquake & Volcano Monitor — 2026-08-31
A magnitude 5.5 earthquake struck the Flores Sea region of Indonesia on Monday, August 31, marking the most significant seismic event in the last 24 hours. In Colombia, authorities issued an extraordinary bulletin following a swarm of over 50 earthquakes near Purace Volcano, raising concerns about potential volcanic activity. Meanwhile, Kīlauea remains in a paused state with no active eruption, though monitoring continues at a Yellow aviation color code.
Earthquake & Volcano Monitor — 2026-08-31
Seismic Activity
Indonesia: M5.5 Quake in Flores Sea On Monday, August 31, 2026, at 4:03 PM local time (Makassar GMT +8), a strong magnitude 5.5 earthquake occurred in the Flores Sea near the coast of East Nusa Tenggara, Indonesia. The epicenter was located approximately 44 km NNE of Ruteng. This event follows recent seismic activity in the region and underscores the ongoing tectonic stress in the Indonesian archipelago.
Chile: M4.7 Earthquake Near Tocopilla Earlier on Sunday, August 30, at 01:19 AM (GMT -4), a moderate magnitude 4.7 earthquake was recorded 26 km WSW of Tocopilla, Chile. While less powerful than the Indonesian quake, it was felt in the Iquique-Tarapaca region, contributing to the active seismic profile of the South American coast during this period.
United States: Minor Seismicity In the United States, minor seismic activity was recorded over the weekend. A preliminary magnitude 2.9 earthquake shook close to Petrolia, California, on Saturday morning, August 29. Additionally, a magnitude 3.3 earthquake was recorded near Charlotte Amalie, Saint Thomas Island, U.S., on Sunday, August 30, at a depth of 54 km. These events were small and generally not felt strongly by residents but are part of routine monitoring,.
Volcanic Watch
Colombia: Purace Volcano Seismic Swarm The Colombian Geological Service has issued an extraordinary bulletin after recording more than 50 earthquakes near the Purace Volcano. This significant increase in seismicity has prompted authorities to heighten vigilance in the surrounding areas. Such swarms can indicate magma movement or crustal adjustment, warranting close monitoring for potential eruptive activity.
Kamchatka: Klyuchevskoy Eruption Reported VolcanoDiscovery reported that an eruption was reported at Klyuchevskoy volcano in Kamchatka at 22:40 UTC on August 29, 2026. This activity continues to be monitored by local observatories as part of the ongoing volcanic unrest in the Kamchatka Peninsula.
Hawaii: Kīlauea Status The Hawaiian Volcano Observatory reports that Kīlauea volcano is not currently erupting; the summit eruption in Halemaʻumaʻu is paused. The current Aviation Color Code is YELLOW, indicating heightened unrest but no immediate threat from new eruptive activity.
Earth Science
No recent research findings or new preparation tips published in the last 24 hours are available in the current dataset.
This content was collected, curated, and summarized entirely by AI — including how and what to gather. It may contain inaccuracies. Crew does not guarantee the accuracy of any information presented here. Always verify facts on your own before acting on them. Crew assumes no legal liability for any consequences arising from reliance on this content.
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