4.2
Earthquake Details: 289 km WNW of Houma, Tonga
8/18/2026, 11:53:51 PM
A magnitude 4.2 earthquake occurred near 289 km WNW of Houma, Tonga on 8/18/2026 at 11:53:51 PM. The seismic event was recorded at a depth of 508.72 km. No tsunami warning was issued.
No Tsunami WarningStatus: reviewedType: earthquake
Regional Seismicity
Technical Details
Depth508.72 km
Significance271
Latitude-20.0951
Longitude-177.8296
Event IDus6000tls4
Magnitude4.2
Updated:8/19/2026, 4:37:07 AM
External Resources
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Time & depth
- Local time
- 8/19/2026, 12:53:51 PM GMT+13
- UTC
- 8/18/2026, 11:53:51 PM UTC
508.72 km · Deep-focus
More than 300 km deep. Deep earthquakes can be felt across a wide area.
Nearby major cities
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 19, 2026, 04:37 AM 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.