4.1
Earthquake details: 268 km WNW of Houma, Tonga
Oct 21, 2026, 02:59:56
- Depth
- 535.234 km
- Felt reports
- No data
Source: USGSUpdated: Nov 6, 2026, 01:53 AM UTC
A magnitude 4.1 earthquake occurred on Oct 21, 2026 at 02:59:56. Epicenter: 268 km WNW of Houma, Tonga. Reported depth: 535.234 km.
Status: Reviewed
Tsunami information
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Time & depth
- Local time
- Oct 20, 2026, 14:59:56 GMT-12
- UTC
- Oct 21, 2026, 02:59:56 UTC
535.234 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.
- USGSmb 4.1
us7000tu1f
- Depth:
- 535.23 km
- Status:
- Reviewed
- Time:
- Updated:
- Nov 6, 2026, 01:53 AM UTC
Technical Details
Depth535.234 km
Significance259
Latitude-20.1483
Longitude-177.6354
Event IDus7000tu1f
Magnitude4.1
Updated:Nov 6, 2026, 01:53:23 UTC
Regional Seismicity
External Resources
Related tools
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: Nov 6, 2026, 01:53 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under 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.
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.
- CENC / Wolfx — CENC earthquake parameters via Wolfx, an independent unofficial relay.
- GFZ / GEOFON — Locations, depths and magnitudes: GFZ/GEOFON using GEVN network data (CC BY 4.0).