Japan earthquakes

M4.3 earthquake 14 km S of Asahi, Japan

A magnitude 4.3 earthquake struck 14 km S of Asahi, Japan on Wed, Mar 22, 2017, 10:50 PM JST (13:50 UTC), 59 km (37 mi) below the surface.

A larger quake followed: M4.8 7 km WSW of Ishioka, Japan. This one was a foreshock.

Asahi 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
4.3 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2017-03-22 13:50:14 UTC
Depth
58.8 km (36.6 mi), shallow
Epicenter
35.586° N, 140.666° E
Region
Japan
Felt reports
9
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

9 people reported to the USGS what they felt; the strongest reported shaking was III, 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 7.9 km horizontally, 7.7 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
156°
Stations used
44

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 4.34 km NNW of Mitsukaid?, Japan · 3483 days ago · 55 km deep · 83 km away · felt by 15
  2. 4.87 km WSW of Ishioka, Japan · 3463 days ago · 63 km deep · 77 km away · felt by 81
  3. 4.45 km ESE of Chiba, Japan · 3461 days ago · 66 km deep · 45 km away · felt by 26
  4. 4.48 km SSE of Tokyo, Japan · 3459 days ago · 119 km deep · 85 km away
  5. 4.57 km WSW of Yachimata, Japan · 3445 days ago · 61 km deep · 39 km away · felt by 9
  6. 4.243 km S of Katsuura, Japan · 3435 days ago · 54 km deep · 97 km away

Before

  1. 4.27 km SE of Kamogawa, Japan · 3485 days ago · 77 km deep · 77 km away · felt by 9
  2. 4.53 km SSE of Sakura, Japan · 3487 days ago · 60 km deep · 39 km away
  3. 4.57 km WNW of Itako, Japan · 3489 days ago · 56 km deep · 46 km away · felt by 5
  4. 4.429 km NE of Hasaki, Japan · 3491 days ago · 50 km deep · 52 km away
  5. 4.38 km E of Omigawa, Japan · 3491 days ago · 61 km deep · 28 km away · felt by 6
  6. 4.132 km ESE of Hasaki, Japan · 3501 days ago · 33 km deep · 48 km away · felt by 1
  7. 4.88 km SSE of Hasaki, Japan · 3501 days ago · 44 km deep · 20 km away · felt by 33
  8. 4.234 km E of ?arai, Japan · 3505 days ago · 59 km deep · 83 km away · felt by 1
  9. 3.821 km NE of Hasaki, Japan · 3507 days ago · 33 km deep · 44 km away · felt by 3
  10. 4.36 km NE of Mitsukaid?, Japan · 3509 days ago · 55 km deep · 78 km away · felt by 2

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20008twh. Read Mon, Oct 5, 2026, 4:39 AM UTC.