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USGS (primary document)

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This event was initially reported as a magnitude 4.4 earthquake. Additional analysis of long period seismic waves indicate that the seismic energy was instead generated by a glacial collapse and debris flow. The location of this event was estimated from satellite images.

Review Status REVIEWED Magnitude 5.2 ms_vx Depth 0.0 km Time 2026-08-26 02:52:10 UTC

USGS National Earthquake Information Center, PDE

## Key Points (updated Aug 26, 18:44 UTC)

- A magnitude 5.2 seismic event occurred near the border between Nepal and China on Aug 26 at 8:37 AM local time (10:52 AM China Standard Time).
- The USGS determined that the seismic event was a glacial collapse and debris flow that caused subsequent catastrophic impacts downstream.
- This event was initially reported as a magnitude 4.4 earthquake. Additional analysis of nearby seismic stations, long period seismic waves, and satellite imagery led to the determination that the seismic event was instead a glacial collapse and debris flow, and that no earthquake had occurred.