Updated: 2026-08-25 18:11:55 (UTC+9) Ver.6
2026-08-25 18:07 (UTC+9),
SE OFF NEMURO PENINSULA,
80km Depth,
M 4.8
by JMA
Is Distribution
Maximum Observed Is:3
Seismic Intensity (Is) distribution is estimated from the observed data (circles) of NIED K-NET, KiK-net, JMA, and local governments that had been collected by 2026/08/25 18:11:45.
Estimated Is for Major Cities
| Max. Obs. Is | Histogram of Estimated Is |
Municipality Show All Data | Daytime Population | Distance [km] |
| 3 | Nemuro,Hokkaido | 28,000 | 27 |
The histogram shows frequency distribution of estimated Is derived from interpolation of the observation with 250-m mesh. The daytime and nighttime correspond to 9:00-18:59 and 19:00-8:59, respectively. The distance is measured from the epicenter to the center of the municipality.
Is Exposed-Population Estimates of Each City
5- or greater
Not Available
|
5+ or greater
Not Available
|
6- or greater
Not Available
|
6+ or greater
Not Available
|
Population exposed to Is 5- or greater are not estimated.
Major Historical Damaging Earthquakes in This Region
| Year | Region | M | Damage |
| 1843 | Kushiro, Nemuro | 7.5 | Tsunamis were observed. 46 dead, 76 houses collapsed. |
| 1894 | Off Nemuro | 7.9 | 1 dead, 12 houses collapsed. Tsunami wave heights recorded at 4.0 m in Miyako. |
| 1961 | Off Kushiro | 7.2 | 11 houses partially damaged, 1 wooden bridge collapsed, and some minor damage near Kushiro. |
| 1973 | SE Off Nemuro Peninsula | 7.4 | Nemurohanto-oki Earthquake,26 injured, 2 houses collapsed, 1 partially damaged. A small tsunami with a height of 2.8 m in Hanasaki. 275 flooded, 10 ships destroyed or sunken. |
Reference: National Astronomical Observatory of Japan, Chronological Scientific Tables, Maruzen, (2017) *partially extracted
Seismic Hazard Information of J-SHIS
J-SHIS is a Web service by NIED, to help prevent and prepare for earthquake disaster by providing a public portal for seismic hazard information across Japan.
