Japan earthquakes

M4.6 earthquake 4 km W of Sakura, Japan

A magnitude 4.6 earthquake struck 4 km W of Sakura, Japan on Tue, Sep 13, 2016, 8:30 AM JST (23:30 UTC), 60 km (37 mi) below the surface.

A larger quake followed: M5.3 7 km S of Sawara, Japan. This one was a foreshock.

Sakura 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
2016-09-12 23:30:40 UTC
Depth
60.0 km (37.3 mi), shallow
Epicenter
35.714° N, 140.187° E
Region
Japan
Felt reports
38
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

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

Felt (III) at Komae and (II) at Tokyo. Also felt at Chiba, Inzai, Kawasaki, Musashino, Naka, Narita, Soka, Tomisato, Tsuchiura, Urayasu, Yamato, Yokohama and Yokosuka. Recorded (2 JMA) in Chiba, Kanagawa, Saitama and Tokyo.

From the USGS event page for us10006p66. U.S. Geological Survey text and figures are in the public domain.

Did you feel it?

38 people reported to the USGS what they felt; the strongest reported shaking was IV, light 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 6.5 km horizontally, 5.8 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
124°
Stations used
65

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 and up: 10 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 5.0near the south coast of Honshu, Japan · 3674 days ago · 74 km deep · 42 km away · felt by 106
  2. 4.524 km SE of Hasaki, Japan · 3670 days ago · 10 km deep · 77 km away · felt by 17
  3. 4.428 km E of ?arai, Japan · 3647 days ago · 40 km deep · 96 km away
  4. 4.53 km NNW of Yoshikawa, Japan · 3647 days ago · 81 km deep · 40 km away
  5. 4.48 km SW of Ishioka, Japan · 3638 days ago · 51 km deep · 47 km away · felt by 7
  6. 5.37 km S of Sawara, Japan · 3637 days ago · 19 km deep · 31 km away · felt by 82
  7. 4.48 km ESE of Omigawa, Japan · 3633 days ago · 43 km deep · 48 km away
  8. 4.2near the east coast of Honshu, Japan · 3631 days ago · 59 km deep · 4 km away · felt by 42
  9. 4.541 km SE of Hasaki, Japan · 3625 days ago · 27 km deep · 93 km away
  10. 4.66 km NE of Kasukabe, Japan · 3616 days ago · 90 km deep · 48 km away

Before

  1. 4.47 km S of Urayasu, Japan · 3678 days ago · 10 km deep · 30 km away
  2. 4.77 km WSW of Tsukuba, Japan · 3680 days ago · 52 km deep · 54 km away · felt by 116
  3. 4.43 km WSW of Sawara, Japan · 3682 days ago · 88 km deep · 30 km away · felt by 2
  4. 4.51 km NW of Iwai, Japan · 3691 days ago · 44 km deep · 47 km away · felt by 26

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10006p66. Read Mon, Oct 5, 2026, 3:05 AM UTC.