Japan earthquakes

M4.4 earthquake 54 km ENE of Hasaki, Japan

A magnitude 4.4 earthquake struck 54 km ENE of Hasaki, Japan on Wed, Feb 11, 1987, 2:04 PM JST (05:04 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.1 17 km ESE of Takahagi, Japan. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1987-02-11 05:04:27 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
35.990° N, 141.346° E
Region
Japan
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

The USGS’s account of the effects of this earthquake.

Felt (I JMA) at Mito.

From the USGS event page for usp00032cs. U.S. Geological Survey text and figures are in the public domain.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from
OPERATOR_ASSIGNED

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.959 km ESE of Hitachi, Japan · 14476 days ago · 62 km deep · 48 km away
  2. 5.117 km ESE of Takahagi, Japan · 14475 days ago · 64 km deep · 83 km away
  3. 4.463 km SE of Hasaki, Japan · 14457 days ago · 52 km deep · 82 km away
  4. 4.544 km E of ?hara, Japan · 14454 days ago · 60 km deep · 94 km away
  5. 5.110 km E of Funaishikawa, Japan · 14451 days ago · 81 km deep · 80 km away
  6. 4.643 km SE of Hasaki, Japan · 14433 days ago · 57 km deep · 66 km away
  7. 4.578 km SE of Hasaki, Japan · 14432 days ago · 33 km deep · 87 km away
  8. 4.4109 km ESE of Iwaki, Japan · 14422 days ago · 53 km deep · 97 km away
  9. 4.911 km NNW of Hasaki, Japan · 14421 days ago · 65 km deep · 54 km away

Before

  1. 5.127 km S of Hasaki, Japan · 14493 days ago · 61 km deep · 73 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00032cs. Read Thu, Oct 1, 2026, 9:06 PM UTC.