Faulting
Basic
Types
Surface Faulting
- Strike-slip
- Dip-slip
- Normal
- Reverse - Combinations
Mid-Plate Events
No apparent fault rupture due to depth or cover by alluvial deposits
Subduction Zones
Common
in Japan, Mexico, Puget Sound, Alaska, South America
Rupture Length and Offset
These can be signficant, as shown below.
|
Event
|
Length
|
Offset
|
|
1906
San Francisco
|
250
miles
|
21
feet
|
|
1960
Chile
|
600
miles
|
--
|
|
1971
San Fernando
|
15
miles
|
3
feet
|
|
1857
Fort Tejon
|
--
|
49
feet
|
Terminology
|
Plan View
|
View along Section E-E
|
OA
- Epicentral distance
OB -
Hypocentral distance
OC - Distance to surface trace
OD - Distance to rupture
