Depth of Earthquake 0-70 km 70-300 km > 300 km Figure 3.15 Seismic events worldwide, January 1977 through December 1986. The locations of about 10,000 earthquakes are colored red, green, and blue to represent event depths of 0-7o kilometers, 70-300 kilome- ters, and below 300 kilometers, respectively. Burweajabebuag e

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Look at the pattern of earthquake depths along the western coast of South America. Without looking ahead, can you think why earthquakes occur at greater depths at greater distances from the Pacific Ocean?

Depth of Earthquake
0-70 km
70-300 km
> 300 km
Figure 3.15 Seismic events worldwide, January 1977 through December 1986. The locations of about 10,000
earthquakes are colored red, green, and blue to represent event depths of 0-7o kilometers, 70-300 kilome-
ters, and below 300 kilometers, respectively.
Burweajabebuag e
Transcribed Image Text:Depth of Earthquake 0-70 km 70-300 km > 300 km Figure 3.15 Seismic events worldwide, January 1977 through December 1986. The locations of about 10,000 earthquakes are colored red, green, and blue to represent event depths of 0-7o kilometers, 70-300 kilome- ters, and below 300 kilometers, respectively. Burweajabebuag e
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