5 km ESE of Asahi, JapanOct 28, 2026, 15:07
Epicenter nearby59 km from Isumi50 km deep3 felt reports for this earthquake
Latest Earthquakes near Isumi
Live map and archive of seismic activity in and around Isumi, Chiba.
Recent notable earthquakes in and around Isumi
northeastern ChibaOct 28, 2026, 18:32
Nearby significant earthquake59 km from Isumi50 km deep
northeastern ChibaOct 28, 2026, 20:22
Nearby significant earthquake59 km from Isumi50 km deep
Earthquakes M1.5+ recorded today within 100 km, local time: 3 (Japan Standard Time (JST))
Isumi Activity Report
M1.5+Past 24 Hours3
Past 7 Days5
Past 30 Days≥17
Past 365 Days≥95
Filtered Statistics
Depth distribution
Shallow-focus 15Intermediate-focus 2Deep-focus 0
Filtered Statistics
17 events
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Latest earthquakes in nearby cities
Live map and archive of seismic activity in and around Isumi, Chiba.
Common Questions about Earthquakes near Isumi
How often are earthquakes recorded in the Isumi area?
In the past 7 days, the number of earthquakes of magnitude 1.5 or above recorded in the area within 100 km of Isumi was 5. These figures describe the available records, not a prediction of future earthquakes.
When was the last earthquake near Isumi?
The most recent recorded earthquake in the area within 100 km of Isumi had a magnitude of 3.5 and occurred on October 29, 2026 at 05:22 AM GMT+9.
How strong was the largest recent earthquake in the Isumi area?
Among the available records for the area within 100 km of Isumi, the largest earthquake in the past 365 days had a magnitude of 5.8. These figures describe the available records, not a prediction of future earthquakes.
How far back does the earthquake data go?
The historical search starts in 1900, but available records vary by region and source. Older and smaller earthquakes may be missing. A long search can reach the list’s display limit, so narrow the date range to explore it in more detail.
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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 28, 2026, 21:41 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).