World Earthquake Report - September 15, 2025
This report summarizes significant earthquake activity worldwide on Monday, September 15, 2025. The largest seismic event was a 7.4-magnitude earthquake near the Kamchatka region of Russia. The total estimated seismic energy released in the past 24 hours was 9.2 x 1013 joules.
Largest Earthquakes Reported
The ten largest earthquakes recorded in the past 24 hours are detailed below, including notable felt reports from across the globe. The largest event occurred near Russia's Kamchatka Peninsula, prompting a brief tsunami warning.
- Mag 7.4: Kamchatka, Russia
- Mag 5.1: Eastern Mediterranean, near Malta
- Mag 5.0: Caribbean Sea, near Guadeloupe
Earthquakes Reported Felt
Several earthquakes were reported felt by people in various locations. The number of reports indicates the magnitude and proximity of the quakes to populated areas.
- Mag 5.0 Caribbean Sea, near Les Abymes, Guadeloupe: 108 reports
- Mag 5.1 Eastern Mediterranean, near San Pawl il-Bahar, Malta: 51 reports
- Mag 3.9 Aegean Sea, near Nisi Amorgos Island, Greece: 19 reports
- Mag 4.5 67 km northeast of Salina Cruz, Estado de Oaxaca, Mexico: 2 reports
Seismic Energy Overview
The total seismic energy released is equivalent to one earthquake of approximately magnitude 6.1. This energy provides a snapshot of overall global tectonic activity. The earthquake near Kamchatka accounted for a significant portion of the day's total energy release.
Kamchatka Earthquake Details
The 7.4-magnitude earthquake struck 69.3 miles east of Petropavlovsk-Kamchatsky, Russia, at a depth of 39 kilometers, according to the U.S. Geological Survey (USGS). While there were no immediate reports of injuries or major damages, the Pacific Tsunami Warning System initially issued a tsunami threat, which was later cancelled. This region is known for seismic activity.
Historical Context - Kamchatka Earthquakes
The Kamchatka Peninsula has a history of significant seismic events. In July 2025, the region experienced multiple powerful quakes, including one of magnitude 7.4. Further, a recent 8.8-magnitude earthquake triggered tsunami warnings in Japan, the U.S., and Russia, highlighting the region's susceptibility to major tectonic shifts.
