Powerful moonquakes recorded by Apollo seismometers over half a century ago have been linked to mysterious fault lines and landslides near the Moon's south pole. The findings, as detailed in a paper published in The Planetary Science Journal this week, suggest that the Earth's lonely satellite is still actively shrinking, a process that is causing its surface to […]
now we actually do forecasting ourselves on our open hazards.com website. we ve done some calculations that you can go there and see. i ve written a blog about that that says there s a chance, 4 or 5% chance a year of 6-magnitude earthquake within 60 miles of downtown and 30% chance within three years. that is still not certain within the sense we don t know for sure those things are going to happen. all we can do is calculate probabilities. bill: northridge was 20 years ago this year,. i that s correct. bill: 19984. that was a different fault line in southern california, am i right about that. you are but that is buried thrust faults. these thrust faults are underground. they have very little surface expression. when they rupture as the northridge earthquake did, the are up sure didn t actually come to the surface. so it was underground of course. and caused the shaking and the damage that killed roughly 50 people in that event. those things are very dangerous,