Quakedle
Puzzle #17 was Drake Passage.
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
- M7.6 — major class
- Magnitude type
- mww — W-phase moment magnitude
- Depth
- 5.6 km — shallow
- Region
- The South Sandwich and Scotia arcs
- Tsunami indicator
- USGS tsunami indicator set
- Felt reports
- 5 DYFI reports
- PAGER alert
- green PAGER alert
- Tectonic plates
- South American Plate · Scotia Plate · Antarctic Plate
- Tectonic context
- The Scotia region contains a tight network of transform and subduction boundaries between the South American, Scotia, and Antarctic plates.
Also on the record
- USGS reports magnitude M7.6. Which standard descriptive class contains it?
- Major (M7.0–7.9)
- The hypocentral depth is 5.6 km. Which depth band is it in?
- Shallow (less than 70 km)
- USGS locates the event at “Drake Passage”. Which broad authored region matches?
- The South Sandwich and Scotia arcs
- What does the USGS tsunami indicator say for this event?
- Yes — the USGS event record has its tsunami indicator set.
- Is this the largest earthquake in the supplied USGS week comparison?
- Yes — it is the largest or tied for largest in the supplied week.