The site of the July 4th shock was likely brought closer to failure in the 1872 M~7.6 shock. Notice that the (red) stress trigger zones of the this 148-year-old quake are all seismically active today, whereas the (blue) stress shadows are generally devoid of shocks.
- What’s happening this week in Humboldt County, California: The squeeze - February 6, 2019
- Finding of the unexpected tsunami due to the strike-slip fault at central Sulawesi, Indonesia on 28 September 2018, from the preliminary field survey at Palu - October 15, 2018
- California bill (AB 2681) to create a public inventory of collapse-risk buildings is awaiting Gov. Brown’s signature - September 7, 2018