Quakedle
Puzzle #20 was 57 km NNW of Kota Belud, Malaysia.
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
- M7.1 — major class
- Magnitude type
- mww — W-phase moment magnitude
- Depth
- 629.0 km — deep
- Region
- Indonesia and the Sunda arc
- Tsunami indicator
- USGS tsunami indicator set
- Felt reports
- 59 DYFI reports
- PAGER alert
- green PAGER alert
- Tectonic plates
- Australian Plate · Eurasian Plate · Philippine Sea Plate
- Tectonic context
- Subduction along the Sunda arc and interactions among several smaller blocks make Indonesia one of Earth’s most seismically active regions.
Also on the record
- USGS reports magnitude M7.1. Which standard descriptive class contains it?
- Major (M7.0–7.9)
- The hypocentral depth is 629.0 km. Which depth band is it in?
- Deep (more than 300 km)
- USGS locates the event at “57 km NNW of Kota Belud, Malaysia”. Which broad authored region matches?
- Indonesia and the Sunda arc
- 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