M 6.8 earthquake – 210 km SW of Port McNeill, Canada
·
Local time: Oct 21, 2018 · 23:16 (UTC-7)
StrongShallow · 10 kmPAGER greenTsunami information issued
Reviewed by a seismologist
Loading the map…
- Magnitude
- 6.8moment magnitude (mww)
- Depth
- 10 kmShallow earthquake
- Epicenter
- 49.335, -129.289301 km from Campbell River
- Energy released
- 239 kilotons of TNTabout 16 × Hiroshima
- Felt reports
- 170"Did You Feel It?" responses
- Shaking intensity
- 4.4max. instrumental (MMI)
- Aftershocks
- 15M2.5+ within 56 km, up to 60 days
- Significance
- 776USGS score, 0–1,000+
The strongest here since 1980
The last earthquake at least as strong within 300 km struck on Dec 17, 1980.
How strong was it?
Strong earthquake. It released 239 kilotons of TNT, 501 times the energy of a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
Aftershocks
15 earthquakes of M2.5+ within 56 km in the 60 days after.
- 6.5 237 km SW of Port McNeill, Canada Oct 22, 2018
- 4.4 208 km SW of Port McNeill, Canada Oct 22, 2018
- 4.5 186 km SW of Port McNeill, Canada Oct 22, 2018
- 4.9 232 km SW of Port McNeill, Canada Oct 22, 2018
- 4.1 214 km WSW of Port McNeill, Canada Oct 22, 2018
- 4.3 201 km SW of Port McNeill, Canada Oct 22, 2018
- 4.4 218 km SW of Port McNeill, Canada Oct 22, 2018
- 4.2 223 km SW of Port McNeill, Canada Oct 22, 2018
- 4.3 209 km SW of Port McNeill, Canada Oct 22, 2018
- 4.6 224 km SW of Port McNeill, Canada Oct 22, 2018
The strongest earthquakes within 300 km
Since 1900, around Canada.
- 7.5 The 1946 Vancouver Island, Canada Earthquake Jun 23, 1946
- 7.5 262 km W of Port McNeill, Canada May 26, 1929
- 7.3 288 km S of Prince Rupert, Canada Jun 24, 1970
- 6.9 32 km SW of Vernon, Canada Dec 6, 1918
- 6.8 212 km SW of Port McNeill, Canada Dec 17, 1980
- 6.7 189 km SW of Port McNeill, Canada Nov 2, 2004
- 6.7 213 km W of Port McNeill, Canada Apr 6, 1992
- 6.7 250 km W of Tofino, Canada Dec 20, 1976
In the week before
Earthquakes within 56 km in the 7 days before this one: possible foreshocks.