A 5.1 magnitude earthquake struck approximately 107–115 km east of Yamada in Iwate Prefecture, Japan, according to the United States Geological Survey (USGS). The offshore quake occurred in the Pacific Ocean along Japan’s east coast, a region known for high seismic activity due to the Pacific Plate subducting beneath the North American Plate.
Earthquake Details (USGS)
- Magnitude: 5.1 (mb or mww, depending on the specific event)
- Location: Roughly 107–116 km (66–72 miles) east of Yamada, Iwate Prefecture
- Depth: Shallow, around 10–13.7 km (common for events in this area, increasing felt intensity potential)
- Epicenter Coordinates: Approximately 39.4–39.6°N, 143.2–143.3°E
- Time: Varies by exact event; recent similar quakes reported in UTC with local Japan time (JST = UTC+9) in the evening or early morning hours
Similar 5.1 magnitude events have occurred off Yamada in recent months, often in the North Pacific Ocean east of Honshu. No major damage or casualties are typically reported for quakes of this magnitude offshore.
What to Do During and After an Earthquake in Japan
If you’re in Japan or planning travel:
- Drop, Cover, and Hold On — Protect your head and neck under sturdy furniture.
- Stay away from windows and heavy objects that could fall.
- After the quake: Check for gas leaks, damaged utilities, and aftershocks. Be prepared for potential stronger follow-up tremors.
- Download the official Japan Meteorological Agency (JMA) app or use NHK World for real-time alerts.
This article is for informational purposes based on USGS data. Earthquake magnitudes and details can be refined as more data becomes available. Stay informed through reliable government sources.
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