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2024-05-02 08:20 (UTC+9),
NORTHERN YAMAGUCHI,
20km Depth, M 4.1 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 2024/05/02 08:31:13.

Estimated Is for Major Cities

Max. Obs. Is Histogram
of Estimated Is
1
2
3
4
5
-
5
+
6
-
6
+
7
 Municipality
Show All Data 		Nighttime Population Distance
[km]
3
Hagi,Yamaguchi 50,000 0
3
Nagato,Yamaguchi 35,000 20
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
5- or greater
Not Available
5+ or greater
5+ or greater
Not Available
6- or greater
6- or greater
Not Available
6+ or greater
6+ or greater
Not Available
color scale

Population exposed to Is 5- or greater are not estimated.

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.

Is Distribution of 2% Probability of Exceedance in 50 Years Is Distribution of Return Period of 50,000-year

Major Historical Damaging Earthquakes in This Region

Year Region M Damage
1596 Bungo 7.0 Landslides in Mt. Takasaki. Yukuharahatimangu shrine collapsed in Yawata-mura. A huge tsunami wreaked damage along the coast of Beppu Bay after seawater receded. House outflows in Oita. 80% of Uryujima Island was submerged, 708 dead.
1676 Iwami 6.5 Tsuwano castle, houses, and stone walls were damaged. 133 houses collapsed, 7 dead.
1778 Iwami 6.5 Stone walls collapsed in Nakagun. Rockfalls in Tsumomura.
1793 Nagato, Suo 6.3-6.5 Houses were damaged in Boufu.
1857 Hagi 6.0 Castle walls were damaged.
1859 Iwami 6.2 56 houses collapsed.
1859 Iwami 6.0-6.5 Houses collapsed, cracks in the ground in Naka, Shimane.
1872 Iwami, Izumo 7.1 Hamada Earthquake,About 5,000 houses collapsed, about 550 dead. A small tsunami was recorded.
1898 N Off Yamaguchi 6.2 Temples and shrines were destroyed and damaged. Stone walls collapsed.
1905 Akinada 7.3 Geiyo Earthquake,56 houses collapsed, 11 dead in Hiroshima. 8 houses collapsed in Ehime.
1997 Northern Yamaguchi 6.6 2 injured, 1house collapsed and 2 partially destroyed. The maximum Is was 5+ (Masuda-shi, Shimane).
Reference: National Astronomical Observatory of Japan, Chronological Scientific Tables, Maruzen, (2017) *partially extracted