Quakedle
Puzzle #78 was 74 km S of Yonakuni, Japan.
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
- M5.6 — moderate class
- Magnitude type
- mww — W-phase moment magnitude
- Depth
- 10.8 km — shallow
- Region
- Japan
- Tsunami indicator
- USGS tsunami indicator not set
- Felt reports
- 11 DYFI reports
- 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 M5.6. Which standard descriptive class contains it?
- Moderate (M5.0–5.9)
- The hypocentral depth is 10.8 km. Which depth band is it in?
- Shallow (less than 70 km)
- USGS locates the event at “74 km S of Yonakuni, Japan”. Which broad authored region matches?
- Japan
- What does the USGS tsunami indicator say for this event?
- No — USGS did not set the event’s tsunami indicator; that is not a forecast.
- USGS received 11 “Did You Feel It?” reports. Which band is that?
- A few reports (1–99)