M4.5 earthquake 24 km SE of Hasaki, Japan
A magnitude 4.5 earthquake struck 24 km SE of Hasaki, Japan on Sat, Sep 17, 2016, 4:35 PM JST (07:35 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.3 104 km ESE of ?hara, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2016-09-17 07:35:53 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 35.578° N, 141.019° E
- Region
- Japan
- Felt reports
- 17
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
What happened
The USGS’s account of the effects of this earthquake.
Felt (II) at Tokyo. Also felt at Chiba, Inzai, Kimitsu, Kukizaki, Narita, Soka, Tomisato, Tsuchiura and Tsukuba. Recorded (3 JMA) in Chiba.
From the USGS event page for us10006qdg. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
17 people 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
- Normal
- Moment magnitude
- 4.5 Mwr
- Nodal plane 1
- Strike 4°, dip 62°, rake -81°
- Nodal plane 2
- Strike 165°, dip 29°, rake -107°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.0 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- Operator assigned
- Station coverage gap
- 113°
- Stations used
- 116
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 5 in the 30 days before it.
After
- 4.178 km ESE of ?hara, Japan · 3664 days ago · 50 km deep · 56 km away
- 4.4122 km SE of Hasaki, Japan · 3664 days ago · 10 km deep · 99 km away
- 5.3104 km ESE of ?hara, Japan · 3664 days ago · 10 km deep · 85 km away
- 4.489 km ESE of ?hara, Japan · 3663 days ago · 42 km deep · 80 km away
- 4.428 km E of ?arai, Japan · 3647 days ago · 40 km deep · 87 km away
- 4.48 km SW of Ishioka, Japan · 3637 days ago · 51 km deep · 97 km away · felt by 7
- 5.37 km S of Sawara, Japan · 3637 days ago · 19 km deep · 53 km away · felt by 82
- 4.48 km ESE of Omigawa, Japan · 3633 days ago · 43 km deep · 40 km away
- 4.2near the east coast of Honshu, Japan · 3630 days ago · 59 km deep · 81 km away · felt by 42
- 4.541 km SE of Hasaki, Japan · 3625 days ago · 27 km deep · 18 km away
- 4.255 km ESE of Hitachi, Japan · 3617 days ago · 35 km deep · 92 km away
- 4.717 km N of Hasaki, Japan · 3611 days ago · 40 km deep · 38 km away · felt by 12
Before
- 4.64 km W of Sakura, Japan · 3674 days ago · 60 km deep · 77 km away · felt by 38
- 4.755 km SE of Katsuura, Japan · 3674 days ago · 40 km deep · 97 km away
- 5.448 km ESE of Hitachi, Japan · 3677 days ago · 32 km deep · 91 km away · felt by 53
- 4.091 km NE of Hasaki, Japan · 3680 days ago · 23 km deep · 93 km away
- 4.43 km WSW of Sawara, Japan · 3682 days ago · 88 km deep · 60 km away · felt by 2
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10006qdg. Read Sun, Oct 4, 2026, 7:47 PM UTC.