Quakedle
Puzzle #35 was 2025 Aomori Prefecture, Japan Earthquake.
Quakedle is an educational game. Event details and tsunami indicators must not be used for emergency decisions; follow official local authorities and current USGS notices.
USGS — Tectonic Plates of the Earth
How it scored
- Magnitude
- M7.6 — major class
- Magnitude type
- mww — W-phase moment magnitude
- Depth
- 40.7 km — shallow
- Region
- Japan
- Tsunami indicator
- USGS tsunami indicator set
- Felt reports
- 259 DYFI reports
- PAGER alert
- yellow PAGER alert
- Tectonic plates
- Pacific Plate · Philippine Sea Plate · Eurasian Plate · North American Plate
- Tectonic context
- Japan sits at a complex set of subduction boundaries involving the Pacific and Philippine Sea plates and overriding continental plates.
Also on the record
- USGS reports magnitude M7.6. Which standard descriptive class contains it?
- Major (M7.0–7.9)
- The hypocentral depth is 40.7 km. Which depth band is it in?
- Shallow (less than 70 km)
- USGS locates the event at “2025 Aomori Prefecture, Japan Earthquake”. Which broad authored region matches?
- Japan
- What does the USGS tsunami indicator say for this event?
- Yes — the USGS event record has its tsunami indicator set.
- USGS received 259 “Did You Feel It?” reports. Which band is that?
- Widely felt (100–999)