5.0

M5.0 Earthquake 216 km SW of Port McNeill, Canada — July 22, 2020

2020-07-22 11:33:24 UTC (2020-07-22) · approx. 2:33 AM UTC-9 local

Felt by 31 people across nearby locations. 0

MagnitudeM5.0(mwr)
Time11:33 UTC≈ 2:33 AM UTC-9
Depth10.0 kmshallow crustal
Coordinates49.099°, -129.030°
Felt by31DYFI responses
Status✓ Reviewed by USGS· Tsunami evaluation· green PAGER
green Alert— no significant casualties or damage expected
Tsunami Warning Issued

On July 22, 2020 at 11:33 UTC, a magnitude 5.0 shallow crustal earthquake struck 216 km SW of Port McNeill, Canada, at a depth of 10.0 km and coordinates 49.0995°, -129.0303°.0 The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected.

Physical scale: An earthquake of magnitude 5.0 releases seismic energy equivalent to roughly 477 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.7 km — a useful intuition for the size of the slip patch on the fault.

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Map showing earthquake epicenter at 49.10°, -129.03°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M5.0 earthquake near 216 km SW of Port McNeill, Canada

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 31 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M5.0 earthquake near 216 km SW of Port McNeill, Canada

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
5.0 mwr
Depth
10.0 km
shallow crustal
Location
49.0995°N
-129.0303°E
Felt Reports
31
DYFI responses
Intensity (MMI)
0.0
weak
Community Intensity
3.4
CDI from reports

Technical Information

Event ID
us7000at13
Event Type
earthquake
Status
✓ Reviewed
Significance
395
Azimuthal Gap
79.0°
Min Station Distance
1.648°
RMS Residual
0.68 sec
Last Updated
2020-10-04 17:50:53 UTC

Common Questions

How strong was the magnitude 5.0 earthquake near Port McNeill, Canada?

The magnitude 5.0 earthquake that struck 216 km SW of Port McNeill, Canada on July 22, 2020 at 11:33 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at 49.0995°, -129.0303°, which is 216 km SW of Port McNeill, Canada.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.0 earthquakes can continue for days to weeks and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000at13). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, July 22, 2020). M5.0 Earthquake 216 km SW of Port McNeill, Canada — July 22, 2020. Retrieved October 4, 2020 from https://www.earthquaketracker.org/earthquakes/event/us7000at13/