4.5
Earthquake Details: 85 km N of Saipan, Northern Mariana Islands
Aug 20, 2026, 21:57:40
A magnitude 4.5 earthquake occurred near 85 km N of Saipan, Northern Mariana Islands on Aug 20, 2026 at 21:57:40. The seismic event was recorded at a depth of 213.53 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth213.53 km
Significance312
Latitude15.9742
Longitude145.6176
Event IDus6000tmb4
Magnitude4.5
Updated:Aug 21, 2026, 01:49:08 UTC
External Resources
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Time & depth
- Local time
- Aug 21, 2026, 07:57:40 GMT+10
- UTC
- Aug 20, 2026, 21:57:40 UTC
213.53 km · Intermediate-focus
Between 70 and 300 km deep.
Nearby major cities
Nearby event sequence · 3
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Earthquake information is automatically aggregated from the official seismic agencies listed below. Preliminary measurements can change as agencies review an event; use local emergency authorities for safety decisions. Latest successful data update: Aug 21, 2026, 01:49 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under CC BY 4.0. CC BY 4.0
- JMA — Source: Japan Meteorological Agency (JMA).
- Geoscience Australia — Based on Australian Earthquakes data by Geoscience Australia. © Commonwealth of Australia. Licensed under CC BY 4.0; the section 5 disclaimer applies. CC BY 4.0
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.