Quakedle
Puzzle #84 was 92 km NNW of Aleneva, Alaska.
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
- M5.5 — moderate class
- Magnitude type
- ml — local magnitude (the original Richter-style scale)
- Depth
- 87.6 km — intermediate
- Region
- Alaska and the Aleutians
- Tsunami indicator
- USGS tsunami indicator not set
- Felt reports
- 326 DYFI reports
- PAGER alert
- green PAGER alert
- Tectonic plates
- Pacific Plate · North American Plate
- Tectonic context
- The Aleutian arc marks Pacific Plate subduction beneath the North American Plate; inland Alaska also contains major crustal faults.
Also on the record
- USGS reports magnitude M5.5. Which standard descriptive class contains it?
- Moderate (M5.0–5.9)
- The hypocentral depth is 87.6 km. Which depth band is it in?
- Intermediate (70–300 km)
- USGS locates the event at “92 km NNW of Aleneva, Alaska”. Which broad authored region matches?
- Alaska and the Aleutians
- 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.
- USGS received 326 “Did You Feel It?” reports. Which band is that?
- Widely felt (100–999)