4.3
Earthquake Details: Mariana Islands region
Oct 16, 2026, 03:57:21
- Depth
- 343.11 km
- Felt reports
- No data
Source: USGSUpdated: Oct 16, 2026, 04:38 AM UTC
A magnitude 4.3 earthquake occurred on Oct 16, 2026 at 03:57:21. Epicenter: Mariana Islands region. Reported depth: 343.11 km.
Tsunami information
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Time & depth
- Local time
- Oct 16, 2026, 13:57:21 GMT+10
- UTC
- Oct 16, 2026, 03:57:21 UTC
343.11 km · Deep-focus
More than 300 km deep. Deep earthquakes can be felt across a wide area.
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Nearby major cities
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 4.3
us6000u2my
- Depth:
- 343.11 km
- Time:
- Updated:
- Oct 16, 2026, 04:38 AM UTC
Technical Details
Depth343.11 km
Significance284
Latitude21.5448
Longitude142.9876
Event IDus6000u2my
Magnitude4.3
Updated:Oct 16, 2026, 04:38:20 UTC
Regional Seismicity
External Resources
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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: Oct 16, 2026, 04:38 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.