"Any earthquake raises the odds of more,"
"If an earthquake has more aftershocks than average, that pumps up the odds that something bigger will happen. And if it has fewer than average, then it goes the other way,"
"This 4.3 was not followed by an especially energetic sequence, so that's sort of reassuring."
Two earthquakes struck near UC Berkeley on Monday: a magnitude 4.3 at 2:56 a.m. and a magnitude 3 at 6:21 p.m., both centered within blocks of the Hayward Fault. More than 30,000 people reported feeling the shaking from Salinas to Santa Rosa. Aftershock forecasts indicate roughly a 3% chance of another quake around the same size within a month and about a 1-in-300 chance of something larger than magnitude 5. The sequence so far has not been especially active. The Hayward Fault historically produces magnitude 6.5 to 7 earthquakes roughly every 140 to 150 years, with about a dozen large events identified.
Read at SFGATE
Unable to calculate read time
Collection
[
|
...
]