Quakedle
Puzzle #28 was 289 km SSE of Ushuaia, Argentina.
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
- M6.4 — strong class
- Magnitude type
- mww — W-phase moment magnitude
- Depth
- 8.0 km — shallow
- Region
- The southern Andes
- Tsunami indicator
- USGS tsunami indicator set
- Felt reports
- 6 DYFI reports
- PAGER alert
- green PAGER alert
- Tectonic plates
- Nazca Plate · South American Plate
- Tectonic context
- Andean deformation reflects Nazca Plate subduction beneath South America, with both crustal and in-slab earthquakes.
Also on the record
- USGS reports magnitude M6.4. Which standard descriptive class contains it?
- Strong (M6.0–6.9)
- The hypocentral depth is 8.0 km. Which depth band is it in?
- Shallow (less than 70 km)
- USGS locates the event at “289 km SSE of Ushuaia, Argentina”. Which broad authored region matches?
- The southern Andes
- What does the USGS tsunami indicator say for this event?
- Yes — the USGS event record has its tsunami indicator set.
- USGS received 6 “Did You Feel It?” reports. Which band is that?
- A few reports (1–99)