From CBC News British Columbia
http://vancouver.cbc.ca/regional/servlet/View?filename=bc_quake20040719
Quake shakes Vancouver Island – again
WebPosted Jul 19 2004 08:04 AM PDT
VICTORIA - Another earthquake has hit Vancouver Island.
It was centred near Nootka Sound and was the second earthquake in the area in the past two weeks.
FROM JULY 15, 2004: Moderate quake hits Vancouver Island
The magnitude 6.1 quake struck just after 1:00 a.m. PDT Monday.
People from all over the Island and in B.C.'s Lower Mainland have been calling and e-mailing the federal earthquake study centre to report the quake.
LINK: Natural Resources Canada: Current earthquake activity
LINK: USGS quake report
Scientist John Cassidy says the two quakes in the same place in such a short time is a coincidence.
"It's a little bit unusual to have two earthquakes of that size so close together in time but this is a very active region."
INDEPTH: Earthquakes
Cassidy says people experienced a shaking for anywhere from 5 to 15 seconds. Residents of highrises reported swaying for up to 20 seconds.
Was this felt in Kelowna?
"Scientist John Cassidy says the two quakes in the same place in such a short time is a coincidence."
" 'It's a little bit unusual to have two earthquakes of that size so close together in time but this is a very active region.' "
It's interesting that they didn't label the first one a foreshock instead of a "coincidence."
That's what seismologists tend to report down here. Often it seems, if the 2nd quake is slightly smaller, they call the second earthquake an "aftershock."
The word "coincidence" makes the "events" sound a little less serious, though it's unclear that that would be a seismologist's or geologist's motivation.