Upload
blake-mckinnon
View
223
Download
4
Tags:
Embed Size (px)
Citation preview
• Primary effects Ground shaking, tilting, and ground rupture Loss of life and collapse of infrastructure Landslides, liquefaction, and tsunamis
• Secondary effects Fires, floods, and diseases
Effects of Earthquakes (1)
• Depending upon the frequency of seismic waves Body waves (P and S) having higher frequency
than surface waves High frequency waves posing more threats on
low structures Low frequency waves posing more impact on tall
structures High frequency waves attenuated faster over
distance, higher buildings far away from the epicenter can be damaged
Effects of Earthquakes (2)
Surface displacement along strike-slip fault: 2
Stanford University,
Geology Quad,1906 Earthquake
Fault rupture
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
ChiChi, Taiwan, 1999
Fotos from geot.civil.metro-u.ac.jp/ archives/eq/99taiwan/
Ground Amplification
Liquefaction
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Nijgata earthquake, 1964 Ml7.5
Ismitz, turkey, 1999
Fotos from USGS web site
Liquefaction
Chichi, 1999
Fotos from geot.civil.metro-u.ac.jp/ archives/eq/99taiwan/
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Landslides
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Chichi earthquake 1999
Kingston and Port Royal Jamaica 1692
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Faults in San FranciscoBay Area
Damage to San Francisco from 1989 Loma Prieta Earthquake
Damage to Bay Bridge from 1989 Loma Prieta Earthquake
Faults in Los Angeles
Damage from 1994 Northridge, CA earthquake
Failure of Van Norman Dam from 1971 San Fernando Earthquake
Failure of freeway overpasses during 1971 San Fernando Earthquake