Quakedle
Puzzle #21 was 61 km SSE of Pangai, Tonga.
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
- M7.0 — major class
- Magnitude type
- mww — W-phase moment magnitude
- Depth
- 29.0 km — shallow
- Region
- Tonga, Fiji, and the Kermadecs
- Tsunami indicator
- USGS tsunami indicator set
- Felt reports
- 27 DYFI reports
- PAGER alert
- green PAGER alert
- Tectonic plates
- Pacific Plate · Australian Plate
- Tectonic context
- The Tonga–Kermadec trench is a fast subduction system where the Pacific Plate descends beneath the Australian Plate region.
Also on the record
- USGS reports magnitude M7.0. Which standard descriptive class contains it?
- Major (M7.0–7.9)
- The hypocentral depth is 29.0 km. Which depth band is it in?
- Shallow (less than 70 km)
- USGS locates the event at “61 km SSE of Pangai, Tonga”. Which broad authored region matches?
- Tonga, Fiji, and the Kermadecs
- What does the USGS tsunami indicator say for this event?
- Yes — the USGS event record has its tsunami indicator set.
- USGS received 27 “Did You Feel It?” reports. Which band is that?
- A few reports (1–99)