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swarm update |
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Earthquake Swarm
Update
August 29, 2008 - Many of you have heard about the
earthquake swarm that is currently occurring
off-shore Vancouver Island.
These earthquakes are occurring along the northern
edge of the Juan de Fuca Ridge about 200km off the
west coast of Vancouver Island. This is a location
where many earthquakes occur everyday and swarms
like this are not uncommon.
This
swarm began on Monday and is likely to continue for
a few days or weeks. Many of these events are small
(less than magnitude 4), but a few magnitude 5s
occurred yesterday and a M6.1 early this morning
(5:37am).
The
important thing to note with these events is they
are too far off-shore to cause any damage. The
larger ones may be felt on Northern Vancouver
Island, but they are too far off-shore to cause
damage. These earthquakes are also too small to
generate a tsunami.
There is no public safety risk from this earthquake
swarm, it is just routine seismic activity.
I
pointed out to a few people yesterday that these
swarms occur every year, this one just happened to
get your attention! As always, these earthquakes can
just serve as a reminder that we do live in a
seismically active area and we need to be prepared.
Current earthquake information is available from
Natural Resources Canada website
Maiclaire Bolton, M.Sc.
Seismologist
PROVINCIAL EMERGENCY PROGRAM
Emergency Management British Columbia
Block A - Suite 200
2261 Keating Cross Road
Saanichton, B.C. CANADA
V8M 2A5
www.pep.bc.ca
Ph
250.952.4891 Fax 250.952.4888
Email:
Maiclaire.Bolton@gov.bc.ca
24 Hour Emergency Reporting 1.800.663.3456
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