Quakedle
Puzzle #76 was 231 km WSW of Port McNeill, Canada.
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
- M5.4 — moderate class
- Magnitude type
- mww — W-phase moment magnitude
- Depth
- 10.0 km — shallow
- Region
- California and Nevada
- Tsunami indicator
- USGS tsunami indicator set
- Felt reports
- 2 DYFI reports
- PAGER alert
- green PAGER alert
- Tectonic plates
- Pacific Plate · North American Plate
- Tectonic context
- Much of this region deforms around the transform boundary between the Pacific and North American plates, including the San Andreas system.
Also on the record
- USGS reports magnitude M5.4. Which standard descriptive class contains it?
- Moderate (M5.0–5.9)
- The hypocentral depth is 10.0 km. Which depth band is it in?
- Shallow (less than 70 km)
- USGS locates the event at “231 km WSW of Port McNeill, Canada”. Which broad authored region matches?
- California and Nevada
- What does the USGS tsunami indicator say for this event?
- Yes — the USGS event record has its tsunami indicator set.
- The event uses magnitude type “mww”. What does that code mean?
- Mww — W-phase moment magnitude