Japan earthquakes

M4.2 earthquake 34 km E of ?arai, Japan

A magnitude 4.2 earthquake struck 34 km E of ?arai, Japan on Wed, Mar 1, 2017, 9:44 AM JST (00:44 UTC), 59 km (37 mi) below the surface.

A larger quake followed: M4.8 8 km SSE of Hasaki, Japan. This one was a foreshock.

Ōarai forecastMore in Japan

Map

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

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The earthquake

Magnitude
4.2 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2017-03-01 00:44:14 UTC
Depth
58.8 km (36.5 mi), shallow
Epicenter
36.295° N, 140.963° E
Region
Japan
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 5.7 km horizontally, 10.5 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
144°
Stations used
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 4.88 km SSE of Hasaki, Japan · 3502 days ago · 44 km deep · 71 km away · felt by 33
  2. 4.132 km ESE of Hasaki, Japan · 3501 days ago · 33 km deep · 73 km away · felt by 1
  3. 4.38 km E of Omigawa, Japan · 3491 days ago · 61 km deep · 56 km away · felt by 6
  4. 4.429 km NE of Hasaki, Japan · 3491 days ago · 50 km deep · 41 km away
  5. 4.57 km WNW of Itako, Japan · 3489 days ago · 56 km deep · 57 km away · felt by 5
  6. 4.53 km SSE of Sakura, Japan · 3487 days ago · 60 km deep · 93 km away
  7. 4.314 km S of Asahi, Japan · 3484 days ago · 59 km deep · 83 km away · felt by 9
  8. 4.126 km ESE of Kitaibaraki, Japan · 3484 days ago · 47 km deep · 44 km away · felt by 2
  9. 4.34 km NNW of Mitsukaid?, Japan · 3483 days ago · 55 km deep · 94 km away · felt by 15
  10. 4.419 km N of Daigo, Japan · 3479 days ago · 57 km deep · 91 km away
  11. 4.012 km W of Kitaibaraki, Japan · 3474 days ago · 35 km deep · 65 km away · felt by 5
  12. 4.87 km WSW of Ishioka, Japan · 3464 days ago · 63 km deep · 71 km away · felt by 81
  13. 4.610 km NW of Takahagi, Japan · 3456 days ago · 24 km deep · 61 km away · felt by 8
  14. 4.44 km NW of Takahagi, Japan · 3456 days ago · 10 km deep · 56 km away · felt by 6

Before

  1. 3.821 km NE of Hasaki, Japan · 3508 days ago · 33 km deep · 49 km away · felt by 3
  2. 4.827 km ENE of Iwaki, Japan · 3508 days ago · 48 km deep · 98 km away · felt by 34
  3. 4.343 km ESE of Hitachi, Japan · 3509 days ago · 36 km deep · 19 km away · felt by 2
  4. 4.36 km NE of Mitsukaid?, Japan · 3510 days ago · 55 km deep · 88 km away · felt by 2
  5. 5.410 km SW of Hasaki, Japan · 3515 days ago · 42 km deep · 73 km away · felt by 127
  6. 4.45 km NW of Sakura, Japan · 3516 days ago · 67 km deep · 93 km away · felt by 8
  7. 4.251 km ESE of Hitachi, Japan · 3525 days ago · 41 km deep · 28 km away · felt by 7
  8. 4.613 km WNW of Takahagi, Japan · 3527 days ago · 36 km deep · 62 km away · felt by 6
  9. 4.423 km NNE of Kashima-shi, Japan · 3528 days ago · 47 km deep · 23 km away · felt by 3
  10. 4.3107 km ESE of Takahagi, Japan · 3529 days ago · 39 km deep · 79 km away
  11. 4.3near the east coast of Honshu, Japan · 3531 days ago · 37 km deep · 11 km away · felt by 2

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us100085va. Read Mon, Oct 5, 2026, 1:01 PM UTC.