Japan earthquakes

M4.4 earthquake 105 km ESE of Iwaki, Japan

A magnitude 4.4 earthquake struck 105 km ESE of Iwaki, Japan on Mon, Jul 18, 2016, 12:28 AM JST (15:28 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.6 64 km E of Namie, Japan. This one was a foreshock.

Iwaki 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
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-07-17 15:28:59 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
36.833° N, 142.039° E
Region
Japan
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

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 3.1 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.08
Depth from
Operator assigned
Station coverage gap
136°
Stations used
70

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 8 in the 30 days before it.

After

  1. 4.252 km E of Iwaki, Japan · 3705 days ago · 77 km deep · 61 km away
  2. 4.745 km E of Namie, Japan · 3704 days ago · 42 km deep · 86 km away · felt by 3
  3. 5.664 km E of Namie, Japan · 3703 days ago · 33 km deep · 70 km away · felt by 55
  4. 4.460 km ESE of Namie, Japan · 3701 days ago · 46 km deep · 65 km away · felt by 1
  5. 5.045 km ESE of Kitaibaraki, Japan · 3699 days ago · 37 km deep · 78 km away · felt by 83
  6. 4.861 km E of Namie, Japan · 3688 days ago · 46 km deep · 71 km away · felt by 3
  7. 4.9105 km ESE of Takahagi, Japan · 3688 days ago · 23 km deep · 60 km away · felt by 13
  8. 4.696 km ESE of Takahagi, Japan · 3688 days ago · 22 km deep · 63 km away
  9. 4.2133 km E of Namie, Japan · 3683 days ago · 8 km deep · 80 km away
  10. 4.091 km NE of Hasaki, Japan · 3681 days ago · 23 km deep · 74 km away
  11. 5.448 km ESE of Hitachi, Japan · 3678 days ago · 32 km deep · 95 km away · felt by 53
  12. 4.562 km E of Namie, Japan · 3676 days ago · 39 km deep · 78 km away · felt by 5

Before

  1. 4.597 km ESE of Iwaki, Japan · 3732 days ago · 21 km deep · 8 km away
  2. 4.430 km ESE of Iwaki, Japan · 3737 days ago · 37 km deep · 76 km away
  3. 4.7123 km ESE of Iwaki, Japan · 3738 days ago · 10 km deep · 18 km away
  4. 4.539 km ENE of Iwaki, Japan · 3741 days ago · 45 km deep · 75 km away · felt by 1
  5. 4.6122 km ESE of Namie, Japan · 3753 days ago · 23 km deep · 30 km away
  6. 5.7119 km E of Iwaki, Japan · 3753 days ago · 13 km deep · 24 km away · felt by 24
  7. 4.2105 km E of Namie, Japan · 3754 days ago · 22 km deep · 57 km away
  8. 4.175 km ESE of Iwaki, Japan · 3760 days ago · 40 km deep · 32 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20006fdn. Read Mon, Oct 5, 2026, 1:55 PM UTC.