Earthquake early-warning systems
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The initial warning that permits you to take evasive action

The network warning that extends the response time.
BE INFORMED, BE WARNED, BE PREPARED: BEFORE, DURING and AFTER an EARTHQUAKE
EARTHQUAKES IN B.C.

WHAT CAUSES EARTHQUAKES

INTENSITY & MAGNITUDE

MERCALLI SCALE

RICHTER SCALE

WHERE DO
EARTHQUAKES OCCUR?

MEGATHRUST EARTHQUAKE?

WHAT ARE THE EFFECTS?

MINIMIZING THE RISK!

BEING PREPARED

Earthquakes in British Columbia 1999

WASHINGTON

99/07/03 01:43:54

47.08N 123.46W

Depth 40.6

5.5Mb

A magnitude 5.5 earthquake occurred at 6:43 pm PDT July 2, 1999 in northern Washington State. The earthquake was located 100 km to the west southwest of Seattle and was felt throughout the Puget Sound area and much of southwest British Columbia. Felt-reports from Victoria, Vancouver, Sidney, Port Alberni and Nanaimo. There are reports of minor injuries and damage in the epicentral area - including broken water mains and a roof collapse near Aberdeen, WA.

The Satsop quake, the area's worst since 1965, was triggered by a fault in the Juan de Fuca plate, which runs below the Pacific coast.

Washington's emergency disaster manager, Jim Schoonover, said that most of the damage was centered in Satsop and in the towns of Aberdeen, Brady, Hoquiam and Montesano, further toward the coast.

In Aberdeen, Moore's Appliance Store sustained large-scale damage.

Copyright: Alex Makarow 1998 - Revised 04/11/00