Eastern Oshima Region, Hokkaido
渡島地方東部
What this epicentre-region name means
This page groups earthquakes whose JMA report uses this epicentre-region name. It identifies the reported epicentre region, not the area where shaking was felt or an administrative boundary.
JISHINDESU stores 21 confirmed or corrected reports from Aug 21, 2015 to Jun 25, 2026. This is not JMA’s complete historical earthquake catalogue. Dates and times use Japan Standard Time (JST).
Earthquakes in the stored history
The largest magnitude and highest Shindo may belong to different earthquakes. Open each report for its details.
Largest recorded magnitude
Stored reports by year
The largest number of stored reports is 9 in 2025. Yearly counts describe the stored reports, not future activity or relative hazard.
- 20266
- 20259
- 20231
- 20211
- 20201
- 20171
- 20152
Prefectures with observations
Each count is the number of earthquakes with a Shindo reading at a station in that prefecture. It does not locate the epicentre or imply shaking throughout the prefecture. One earthquake may appear in several prefectures.
Recent earthquakes
Showing the latest 21 of 21 stored reports, not the complete list.