4.1
Earthquake Details: 1 km SSW of Tomakomai, Japan
7/30/2026, 5:36:50 AM
A magnitude 4.1 earthquake occurred near 1 km SSW of Tomakomai, Japan on 7/30/2026 at 5:36:50 AM. The seismic event was recorded at a depth of 115.384 km. No tsunami warning was issued.
No Tsunami WarningStatus: reviewedType: earthquake
Regional Seismicity
Technical Details
Depth115.384 km
Significance259
Latitude42.6274
Longitude141.5990
Event IDus6000ti1z
Magnitude4.1
Updated:8/6/2026, 6:27:15 AM
External Resources
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Time & depth
- Local time
- 7/30/2026, 2:36:50 PM GMT+9
- UTC
- 7/30/2026, 5:36:50 AM UTC
115.384 km · Intermediate-focus
Between 70 and 300 km deep.
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 6, 2026, 06:27 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.