Quakedle
Puzzle #83 was south of the Fiji Islands.
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
- M5.0 — moderate class
- Magnitude type
- mb — body-wave magnitude
- Depth
- 518.6 km — deep
- Region
- Tonga, Fiji, and the Kermadecs
- Tsunami indicator
- USGS tsunami indicator not set
- Felt reports
- No DYFI count reported
- PAGER alert
- No PAGER alert color reported
- 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 M5.0. Which standard descriptive class contains it?
- Moderate (M5.0–5.9)
- The hypocentral depth is 518.6 km. Which depth band is it in?
- Deep (more than 300 km)
- USGS locates the event at “south of the Fiji Islands”. Which broad authored region matches?
- Tonga, Fiji, and the Kermadecs
- 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 “mb”. What does that code mean?
- mb — body-wave magnitude