M4.9 earthquake 142 km ENE of Miyako, Japan
A magnitude 4.9 earthquake struck 142 km ENE of Miyako, Japan on Sat, May 20, 2017, 8:26 PM JST (11:26 UTC), 11 km (7 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (Mww, W-phase moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-05-20 11:26:28 UTC
- Depth
- 11.2 km (7.0 mi), shallow
- Epicenter
- 39.952° N, 143.555° E
- Region
- Japan
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
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
- 4.9 Mww
- Nodal plane 1
- Strike 187°, dip 12°, rake 79°
- Nodal plane 2
- Strike 18°, dip 79°, rake 92°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 7.9 km horizontally, 1.7 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- From location
- Station coverage gap
- 134°
- Stations used
- 110
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 3 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10008ttb. Read Sun, Oct 4, 2026, 8:57 PM UTC.