Japan earthquakes

M4.5 earthquake 7 km WNW of Itako, Japan

A magnitude 4.5 earthquake struck 7 km WNW of Itako, Japan on Fri, Mar 17, 2017, 10:00 PM JST (13:00 UTC), 56 km (35 mi) below the surface.

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

Namegata 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
4.5 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2017-03-17 13:00:26 UTC
Depth
56.4 km (35.0 mi), shallow
Epicenter
35.971° N, 140.477° E
Region
Japan
Felt reports
5
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

5 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 4.9 km horizontally, 6.7 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
154°
Stations used
50

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 4.53 km SSE of Sakura, Japan · 3486 days ago · 60 km deep · 38 km away
  2. 4.314 km S of Asahi, Japan · 3483 days ago · 59 km deep · 46 km away · felt by 9
  3. 4.126 km ESE of Kitaibaraki, Japan · 3483 days ago · 47 km deep · 93 km away · felt by 2
  4. 4.34 km NNW of Mitsukaid?, Japan · 3482 days ago · 55 km deep · 48 km away · felt by 15
  5. 4.012 km W of Kitaibaraki, Japan · 3473 days ago · 35 km deep · 93 km away · felt by 5
  6. 4.87 km WSW of Ishioka, Japan · 3463 days ago · 63 km deep · 34 km away · felt by 81
  7. 4.45 km ESE of Chiba, Japan · 3460 days ago · 66 km deep · 52 km away · felt by 26
  8. 4.48 km SSE of Tokyo, Japan · 3458 days ago · 119 km deep · 78 km away
  9. 4.610 km NW of Takahagi, Japan · 3455 days ago · 24 km deep · 91 km away · felt by 8
  10. 4.44 km NW of Takahagi, Japan · 3455 days ago · 10 km deep · 88 km away · felt by 6
  11. 4.57 km WSW of Yachimata, Japan · 3444 days ago · 61 km deep · 43 km away · felt by 9
  12. 4.26 km NNW of Motegi, Japan · 3443 days ago · 116 km deep · 72 km away

Before

  1. 4.429 km NE of Hasaki, Japan · 3490 days ago · 50 km deep · 51 km away
  2. 4.38 km E of Omigawa, Japan · 3490 days ago · 61 km deep · 26 km away · felt by 6
  3. 4.132 km ESE of Hasaki, Japan · 3500 days ago · 33 km deep · 72 km away · felt by 1
  4. 4.88 km SSE of Hasaki, Japan · 3500 days ago · 44 km deep · 49 km away · felt by 33
  5. 4.234 km E of ?arai, Japan · 3504 days ago · 59 km deep · 57 km away · felt by 1
  6. 3.821 km NE of Hasaki, Japan · 3506 days ago · 33 km deep · 51 km away · felt by 3
  7. 4.19 km NNE of Sakai, Japan · 3508 days ago · 56 km deep · 63 km away · felt by 19
  8. 4.343 km ESE of Hitachi, Japan · 3508 days ago · 36 km deep · 75 km away · felt by 2
  9. 4.36 km NE of Mitsukaid?, Japan · 3508 days ago · 55 km deep · 42 km away · felt by 2
  10. 5.410 km SW of Hasaki, Japan · 3514 days ago · 42 km deep · 42 km away · felt by 127
  11. 4.45 km NW of Sakura, Japan · 3515 days ago · 67 km deep · 36 km away · felt by 8

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20008sp2. Read Sun, Oct 4, 2026, 9:47 AM UTC.