M4.4 earthquake 49 km ESE of ?tsuchi, Japan
A magnitude 4.4 earthquake struck 49 km ESE of ?tsuchi, Japan on Tue, Sep 20, 2016, 8:46 AM JST (23:46 UTC), 48 km (30 mi) below the surface.
A larger quake followed: M5.0 54 km SE of ?funato, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2016-09-19 23:46:49 UTC
- Depth
- 48.3 km (30.0 mi), shallow
- Epicenter
- 39.245° N, 142.457° E
- Region
- Japan
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
What happened
The USGS’s account of the effects of this earthquake.
Recorded (3 JMA) in Iwate.
From the USGS event page for us10006qy2. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
No one has reported feeling this quake to the USGS.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Reverse (thrust)
- Moment magnitude
- 4.4 Mwr
- Nodal plane 1
- Strike 4°, dip 20°, rake 118°
- Nodal plane 2
- Strike 154°, dip 72°, rake 80°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.6 km horizontally, 4.2 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 90°
- Stations used
- 74
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.464 km ESE of Yamada, Japan · 3661 days ago · 35 km deep · 15 km away
- 4.7128 km E of Yamada, Japan · 3626 days ago · 14 km deep · 85 km away · felt by 1
- 4.5130 km ESE of Yamada, Japan · 3620 days ago · 10 km deep · 81 km away
- 5.054 km SE of ?funato, Japan · 3614 days ago · 48 km deep · 63 km away · felt by 2
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10006qy2. Read Sat, Oct 3, 2026, 3:57 AM UTC.