Copyright Information: All images are in the public domain and available for free. If you use this image, credit NOAA/NGDC, Lindie Brewer, U.S. Geological Survey. |
Heavy equipment operators remove a landslide on Mattole Road, near Petrolia. Many small landslides were observed along Mattole Road between Ferndale and Petrolia. Image Credit: Lindie Brewer. U.S. Geological Survey April 25, 1992 Cape Mendocino USA earthquake On April 25, 1992 at 11:06 am local time (April 25 at 18:06 GMT), a magnitude 7.1 earthquake occurred in the Cape Mendocino area. Two additional earthquakes, magnitudes 6.6 and 6.7 occurred the next morning (April 26 at 00:41 and 04:18 am local time). The first earthquake was located six miles north of Petrolia, California, in a sparsely populated part of southwestern Humboldt County. Five small communities were located within a 50-mile radius of these events: Honeydew, Petrolia, Rio Dell, Scotia, and Ferndale. Event Data:
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