Earth Quake in Portland By Michael Zara. January 15 2003 b Two earthquakes with magnitudes of 5.3 & 5.5 struck the Portland area. b The epicenters were.

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Presentation transcript:

Earth Quake in Portland By Michael Zara

January b Two earthquakes with magnitudes of 5.3 & 5.5 struck the Portland area. b The epicenters were located on the sea floor b The quake did not cause a tsunami or tidal wave. b If these earthquakes had of occurred o land, they would have done considerable damage.

Epicenters for Quake b Along Blanco fracture zone (FZ) b Blanco FZ is located next to the Cascadia subduction system. b Past quakes on this zone have exceeded 9.0 on the Richter Magnitude (RM) scale b Quakes this big (>RM9.0) happen every 300 yrs, the last one being in the 1700’s.

Oregon State Department of Geology suggestions for dealing with earthquakes b Know how to protect your self by ducking under furniture or finding a safe area. b Prepare a 72 hr emergency kit. b Have a plan for communication with other family members if separated. b Know how to evacuate from coastal areas

Fig.4.03 W. W. Norton

Fig a W. W. Norton