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GSC Scientists Monitor "Tremor and Slip" Beneath Vancouver Island
An important scientific event is currently underway on the west coast of Canada.
The event is the predicted "tremor and slip event" which is related to
the movement of the Juan de Fuca and North America tectonic plates
along the Cascadia margin of southern British Columbia. The slip event
(monitored by Global Positioning Satellite data) and the associated
tremors that we are currently experiencing, are directly related to
megathrust (Sumatra-like) earthquake potential. Neither the tremor nor the slip can be felt.
The forecast Episodic Tremor and Slip event has now reached southern
Vancouver Island. Tremor activity started at 01:00 on September 03 on
the Olympic Peninsula of Washington State and has migrated north to
the greater Victoria/southernmost Vancouver Island area. Using GPS
observation, Natural Resources Canada scientists have confirmed that
Victoria has moved 3mm to the west in the 2 days since the slip event
began. Episodic tremor and slip occurs roughly every 14th months, and
lasts from 6 to 15 days.
By better understanding these events, we will be able to better
predict the effects (and perhaps timing) of future magnitude 9
earthquakes along the west coast.
An important scientific event is currently underway on the west coast of Canada.
The event is the predicted "tremor and slip event" which is related to
the movement of the Juan de Fuca and North America tectonic plates
along the Cascadia margin of southern British Columbia. The slip event
(monitored by Global Positioning Satellite data) and the associated
tremors that we are currently experiencing, are directly related to
megathrust (Sumatra-like) earthquake potential. Neither the tremor nor the slip can be felt.
The forecast Episodic Tremor and Slip event has now reached southern
Vancouver Island. Tremor activity started at 01:00 on September 03 on
the Olympic Peninsula of Washington State and has migrated north to
the greater Victoria/southernmost Vancouver Island area. Using GPS
observation, Natural Resources Canada scientists have confirmed that
Victoria has moved 3mm to the west in the 2 days since the slip event
began. Episodic tremor and slip occurs roughly every 14th months, and
lasts from 6 to 15 days.
By better understanding these events, we will be able to better
predict the effects (and perhaps timing) of future magnitude 9
earthquakes along the west coast.











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