Japan earthquakes

M4.6 earthquake 49 km E of Namie, Japan

A magnitude 4.6 earthquake struck 49 km E of Namie, Japan on Wed, Mar 22, 2017, 9:21 AM JST (00:21 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M5.0 73 km ESE of Namie, Japan. This one was a foreshock.

Namie 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
4.6 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2017-03-22 00:21:02 UTC
Depth
14.2 km (8.8 mi), shallow
Epicenter
37.398° N, 141.544° 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 3.6 km horizontally, 4.6 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
142°
Stations used
77

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 and up: 6 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 4.126 km ESE of Kitaibaraki, Japan · 3483 days ago · 47 km deep · 92 km away · felt by 2
  2. 4.850 km E of Namie, Japan · 3466 days ago · 43 km deep · 18 km away · felt by 8
  3. 5.073 km ESE of Namie, Japan · 3455 days ago · 38 km deep · 25 km away · felt by 19
  4. 4.433 km ENE of Iwaki, Japan · 3451 days ago · 39 km deep · 37 km away · felt by 1
  5. 4.246 km ESE of Namie, Japan · 3436 days ago · 22 km deep · 11 km away
  6. 4.442 km SE of Namie, Japan · 3435 days ago · 35 km deep · 22 km away

Before

  1. 4.345 km SE of Namie, Japan · 3493 days ago · 35 km deep · 25 km away
  2. 5.345 km E of Namie, Japan · 3494 days ago · 44 km deep · 15 km away · felt by 49
  3. 4.640 km SE of Namie, Japan · 3500 days ago · 14 km deep · 25 km away · felt by 2
  4. 4.136 km E of Namie, Japan · 3501 days ago · 46 km deep · 13 km away
  5. 5.037 km ENE of Namie, Japan · 3504 days ago · 54 km deep · 22 km away · felt by 12
  6. 4.8111 km E of Iwaki, Japan · 3505 days ago · 24 km deep · 73 km away
  7. 5.730 km ENE of Namie, Japan · 3505 days ago · 47 km deep · 26 km away · felt by 100
  8. 4.2near the east coast of Honshu, Japan · 3506 days ago · 19 km deep · 19 km away
  9. 4.827 km ENE of Iwaki, Japan · 3507 days ago · 48 km deep · 43 km away · felt by 34
  10. 4.632 km SSE of Namie, Japan · 3507 days ago · 61 km deep · 36 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20008tmx. Read Sun, Oct 4, 2026, 10:58 AM UTC.