Quakedle
Puzzle #41 was 29 km ESE of Yilan, Taiwan.
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
- M6.6 — strong class
- Magnitude type
- mww — W-phase moment magnitude
- Depth
- 63.0 km — shallow
- Region
- Taiwan and the Ryukyus
- Tsunami indicator
- USGS tsunami indicator set
- Felt reports
- 439 DYFI reports
- PAGER alert
- green PAGER alert
- Tectonic plates
- Philippine Sea Plate · Eurasian Plate
- Tectonic context
- Taiwan and the Ryukyu arc occupy a complicated collision and subduction zone between the Philippine Sea and Eurasian plates.
Also on the record
- USGS reports magnitude M6.6. Which standard descriptive class contains it?
- Strong (M6.0–6.9)
- The hypocentral depth is 63.0 km. Which depth band is it in?
- Shallow (less than 70 km)
- USGS locates the event at “29 km ESE of Yilan, Taiwan”. Which broad authored region matches?
- Taiwan and the Ryukyus
- 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