Quakedle
Puzzle #103 was Bonin Islands, Japan region.
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
- M6.5 — strong class
- Magnitude type
- mww - W-phase moment magnitude
- Depth
- 492.4 km — deep
- Region
- Japan
- Tsunami indicator
- USGS tsunami indicator set
- Felt reports
- No DYFI count reported
- PAGER alert
- green 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 M6.5. Which standard descriptive class contains it?
- Strong (M6.0–6.9)
- The hypocentral depth is 492.4 km. Which depth band is it in?
- Deep (more than 300 km)
- USGS locates the event at “Bonin Islands, Japan region”. 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.
- The event uses magnitude type “mww”. What does that code mean?
- Mww — W-phase moment magnitude