M4.0 earthquake 48 km ESE of Ishinomaki, Japan
A magnitude 4.0 earthquake struck 48 km ESE of Ishinomaki, Japan on Thu, Apr 12, 2018, 4:09 AM JST (19:09 UTC), 48 km (30 mi) below the surface.
A larger quake followed: M5.0 55 km E of Ishinomaki, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-04-11 19:09:13 UTC
- Depth
- 47.9 km (29.7 mi), shallow
- Epicenter
- 38.255° N, 141.820° E
- Region
- Japan
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 6.5 km horizontally, 15.7 km in depth
- Magnitude uncertainty
- ±0.37
- Depth from
- From location
- Station coverage gap
- 183°, poorly surrounded by stations
- Stations used
- 11
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.340 km E of Namie, Japan · 3099 days ago · 30 km deep · 88 km away
- 4.956 km E of Ishinomaki, Japan · 3098 days ago · 59 km deep · 17 km away · felt by 6
- 4.665 km ESE of ?funato, Japan · 3091 days ago · 35 km deep · 73 km away
- 4.234 km E of Ishinomaki, Japan · 3082 days ago · 53 km deep · 22 km away
- 4.867 km ENE of Namie, Japan · 3070 days ago · 37 km deep · 51 km away
- 5.055 km E of Ishinomaki, Japan · 3068 days ago · 44 km deep · 27 km away · felt by 5
- 4.471 km E of Ishinomaki, Japan · 3066 days ago · 35 km deep · 28 km away
- 4.771 km SSE of Ishinomaki, Japan · 3054 days ago · 49 km deep · 43 km away · felt by 6
- 4.338 km SE of Kamaishi, Japan · 3053 days ago · 51 km deep · 97 km away
- 4.651 km ESE of Ishinomaki, Japan · 3052 days ago · 44 km deep · 7 km away · felt by 1
Before
- 4.635 km ESE of Ishinomaki, Japan · 3099 days ago · 52 km deep · 13 km away
- 4.569 km E of Namie, Japan · 3106 days ago · 36 km deep · 97 km away · felt by 1
- 4.841 km SE of ?funato, Japan · 3119 days ago · 40 km deep · 71 km away · felt by 10
- 4.552 km ESE of Ishinomaki, Japan · 3127 days ago · 41 km deep · 6 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000e251. Read Mon, Oct 5, 2026, 1:28 PM UTC.