M 7.4 near Miyako, Japan
M7.4 quake at depth 35 km; tsunami advisory in effect.
Magnitude 7.4 earthquake, depth 35 km, 100 km ENE of Miyako, Japan.
Magnitude 7.4 Mw
Depth 35 km
Epicenter 39.95°N 143.05°E
Tsunami Advisory
Incident area · 100 km ENE of Miyako, Japan 143.05 · 39.95 · 143.05 · 39.95
Earthquake record
- Magnitude
- M7.4 (Mw)
- Depth
- 35 km
- Shaking intensity (MMI)
- 5.993
- Felt reports
- 105
- Tsunami threat
- Yes — check local advisories
- Tectonic setting
- Near the Pacific – Okhotsk plate boundary (103 km) — subduction
What to do during a mainshock
Shaking can cause falling objects, collapsing structures, and downed power lines.
- Drop, Cover, and Hold On. Get under a sturdy table or next to an interior wall; protect your head and neck.
- Stay indoors until the shaking stops and you are sure it is safe to exit.
- If outdoors, move to an open area away from buildings, power lines, and trees.
- If driving, pull over in a clear area and stay in the vehicle.
- After the shaking, watch for aftershocks and check for injuries, gas leaks, and structural damage before moving through the building.
General guidance based on NWS, FEMA, and Ready.gov. Always follow instructions from local officials, which take precedence.
Provenance
- Snapshot built
- 2m ago
- Commit
cebe2986- Payload hashes
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b4085f3a42fd…· USGS