Quakedle
Puzzle #15 was 41 km ESE of San Pedro de Atacama, Chile.
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
- M7.4 — major class
- Magnitude type
- mww — W-phase moment magnitude
- Depth
- 127.3 km — intermediate
- Region
- Chile and the central Andes
- Tsunami indicator
- USGS tsunami indicator set
- Felt reports
- 216 DYFI reports
- PAGER alert
- green PAGER alert
- Tectonic plates
- Nazca Plate · South American Plate
- Tectonic context
- Chile lies above the Nazca–South America subduction zone, capable of very large interface earthquakes and deep events within the slab.
Also on the record
- USGS reports magnitude M7.4. Which standard descriptive class contains it?
- Major (M7.0–7.9)
- The hypocentral depth is 127.3 km. Which depth band is it in?
- Intermediate (70–300 km)
- USGS locates the event at “41 km ESE of San Pedro de Atacama, Chile”. Which broad authored region matches?
- Chile and the central Andes
- What does the USGS tsunami indicator say for this event?
- Yes — the USGS event record has its tsunami indicator set.
- USGS received 216 “Did You Feel It?” reports. Which band is that?
- Widely felt (100–999)