Instrumental shaking thresholds for seismically induced landslides and preliminary report on landslides triggered by the October 17, 1989, Loma Prieta, California earthquake
Geografia Fisica e Dinamica Quaternaria
By: E. L. Harp
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Abstract
The generation of seismically induced landslide depends on the characteristics of shaking as well as mechanical properties of geologic materials. A very important parameter in the study of seismically induced landslide is the intensity based on a strong-motion accelerogram: it is defined as Arias intensity and is proportional to the duration of the shaking record as well as the amplitude. Having a theoretical relationship between Arias intensity, magnitude and distance it is possible to predict how far away from the seismic source landslides are likely to occur for a given magnitude earthquake. Field investigations have established that the threshold level of Arias intensity depends also on site effects, particularly the fracture characteristics of the outcrops present. -from Author
Suggested Citation
Harp, E.L., 1993, Instrumental shaking thresholds for seismically induced landslides and preliminary report on landslides triggered by the October 17, 1989, Loma Prieta, California earthquake: Geografia Fisica e Dinamica Quaternaria, v. 16, no. 1, p. 13-15.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Instrumental shaking thresholds for seismically induced landslides and preliminary report on landslides triggered by the October 17, 1989, Loma Prieta, California earthquake |
| Series title | Geografia Fisica e Dinamica Quaternaria |
| Volume | 16 |
| Issue | 1 |
| Year Published | 1993 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Geografia Fisica e Dinamica Quaternaria |
| First page | 13 |
| Last page | 15 |