A 7.6-magnitude earthquake struck Panama, followed by multiple aftershocks exceeding magnitude 5.0; tsunami warnings have been issued by several countries. What is the current situation on the ground?

A recent 7.7-magnitude earthquake struck Panama—a shallow strike-slip event occurring mostly on land. Preliminary intensity maps suggest a left-lateral, bilateral rupture. Interferometric Synthetic Aperture Radar (InSAR) data should clearly reveal this rupture. Fortunately, the epicenter was not located near densely populated areas. Further information will gradually become available. Here is a USGS event webpage link: earthquake.usgs.gov/ear...

Panama’s 7.7-magnitude earthquake: estimated intensity distribution and damage assessment

Origin time: 2026-10-10 01:56:06 (UTC+08:00) Epicenter: 7.587°N, 80.769°W Depth: 12.6 km Based on array back-projection analysis, the rupture extent spans coordinates: (7.74, −81.27) to (7.19, −80.28), with an approximate rupture length of 125 km. Estimated maximum intensity: XI (11) on the Modified Mercalli Intensity Scale. (Compared with other earthquakes of similar magnitude, this event’s rupture zone appears relatively compact, resulting in more concentrated energy release and thus a higher estimated intensity.) Estimated median fatality count: 300. (Note: Actual fatalities may vary significantly depending on building quality, deviations between predicted and actual intensities, and other factors; the figure of 300 serves only as a rough estimate.) The epicentral region comprises sparsely populated villages; consequently, overall losses are comparatively limited despite the earthquake’s high magnitude and intensity. Accordingly, the estimated fatality count stands at 300. Below are the estimated intensity distribution and damage assessment.

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