1992 Cape Mendocino earthquakes
E68161
The 1992 Cape Mendocino earthquakes were a sequence of powerful offshore quakes near Northern California that caused significant shaking, damage, and a small tsunami along the Pacific coast.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
earthquake sequence
ⓘ
natural disaster ⓘ |
| affectedPlace |
Eureka, California
ⓘ
Ferndale, California ⓘ Humboldt County, California NERFINISHED ⓘ Petrolia, California ⓘ |
| casualties | 1 killed ⓘ |
| cause | subduction of the Gorda Plate beneath the North American Plate ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| damage |
landslides
ⓘ
road damage ⓘ severe damage in Petrolia ⓘ structural damage in Ferndale ⓘ |
| depthOfMainshock | about 10 km ⓘ |
| endDate | 1992-04-26 ⓘ |
| generatedTsunami | yes ⓘ |
| injuries | dozens injured ⓘ |
| intensityScale | Modified Mercalli intensity scale ⓘ |
| locatedIn |
Northern California
ⓘ
Pacific Ocean ⓘ offshore Cape Mendocino ⓘ |
| mainshockDate | 1992-04-25 ⓘ |
| mainshockMagnitude | 7.2 Mw ⓘ |
| mainshockTimeUTC | 1992-04-25T18:06:00Z ⓘ |
| maximumIntensity | VIII (Severe) ⓘ |
| maximumMagnitude | 7.2 Mw ⓘ |
| notableAftershocks | numerous ⓘ |
| numberOfMainEvents | 3 ⓘ |
| partOf |
California Coast Ranges seismicity
ⓘ
history of earthquakes in California ⓘ |
| recordedBy | United States Geological Survey ⓘ |
| region |
Pacific coast of North America
ⓘ
surface form:
Pacific Coast of the United States
|
| secondEventMagnitude | 6.5 Mw ⓘ |
| seismicHazardImpact | highlighted high seismic risk at Mendocino Triple Junction ⓘ |
| startDate | 1992-04-25 ⓘ |
| tectonicSetting |
Mendocino Triple Junction
ⓘ
boundary of Gorda Plate ⓘ boundary of North American Plate ⓘ boundary of Pacific Plate ⓘ |
| thirdEventMagnitude | 6.6 Mw ⓘ |
| triggeredFires | yes ⓘ |
| triggeredLandslides | yes ⓘ |
| tsunamiAffectedArea |
North Coast of California
ⓘ
surface form:
Northern California coast
Oregon Coast ⓘ
surface form:
Southern Oregon coast
|
| tsunamiHeightMaximum | about 1.1 m ⓘ |
| typeOfFaulting | thrust faulting ⓘ |
| year | 1992 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.