|
|
About 20 small to moderate eruptions have occurred along the Mono-Inyo Craters volcanic chain in the past 5,000 years. Some of these occurred close together in time and location; for example, note the eruptions along the Inyo Craters and the Mono Craters about 600 years ago. The intervals between eruptions or eruption clusters ranges from 250 years to 750 years. Assuming that this frequency of eruptions has not changed, the long-term odds of another eruption in any given year are roughly one in a few hundred. These are comparable with odds for a great (magnitude 8) earthquake occurring on the San Andreas fault in coastal California. But they are smaller than the odds for a major (magnitude 7 or greater) earthquake in the Los Angeles basin or the San Francisco Bay Area. |
