Quakedle
Puzzle #29 was south of Africa.
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
- 4.0 km — shallow
- Region
- Southern Africa
- Tsunami indicator
- USGS tsunami indicator not set
- Felt reports
- No DYFI count reported
- PAGER alert
- green PAGER alert
- Tectonic plates
- African Plate
- Tectonic context
- Most earthquakes here occur within the African Plate or along diffuse deformation zones rather than at a single major plate edge.
Also on the record
- USGS reports magnitude M6.6. Which standard descriptive class contains it?
- Strong (M6.0–6.9)
- The hypocentral depth is 4.0 km. Which depth band is it in?
- Shallow (less than 70 km)
- USGS locates the event at “south of Africa”. Which broad authored region matches?
- Southern Africa
- 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.
- The event uses magnitude type “mww”. What does that code mean?
- Mww — W-phase moment magnitude