Qauke News: USGS 3:00pm News Conference
Tuesday, July 29th, 2008- The USGS is working to figure out which fault system this is exactly associated with
- Two magnitude 3+ ?aftershocks, one 3.8 and the other 3.6
- Heaviest shaking was “up under the region of Diamond Bar” (intersection of 57 and 60 freeways)
- Magnitude 5.4 would screw up lots of stuff but is not a big deal in California (other than Brick Buildings)
- Buildings built since 1930 should withstand this kind of earthquake
- “We’ll Learn a lot” from this quake in fields of seismology equipment and other stuff
- This is the first earthquake that has the advantage of all the new equipment deployed since the Northridge Quake in 1994
- “Things like this help to remind Californians why we fund this kind of thing in the first place.”
- Stress was not released by this. To relieve the stress on the plates it would require an ‘event’ 1,000 times this size or 10,000 of these.
- Earthquake Early Warning system would not have helped for something like this.
- Earthquake lasted less than 2 seconds at hte epicenter (deep under the earth) and then waves spread out and it lasted various lengths of times at various points







