We get tornado warnings, hurricane warnings, snow storm warnings, but no earthquake warnings. It’s difficult to prepare for something when we don’t know when it is coming. We only know that eventually, an earthquake will happen. Why is this? And is this changing? Can earthquakes be predicted?
For California, another large earthquake is inevitable. In 1906, a magnitude 7.9 earthquake struck San Francisco and destroyed 28,000 structures, over 80% of the city’s buildings at the time. The magnitude 6.9 Loma Prieta earthquake in 1989 is estimated to have caused anywhere from $6-10 billion in property damages around the Bay Area. But these days there’s technology to help buildings resist earthquakes. One the most robust ways for a building to resist earthquake damage is base isolation. As a follow-up to the detailed New York Times article about base isolation, we take a deep dive into base isolation in San Francisco.
Whoa, was that an earthquake last night? Did you check out Nextdoor or Twitter to see if others also woke up? It’s actually good news when earthquakes hit at night instead of during the day. Night earthquakes mean fewer injuries and fewer fatalities. Let’s look into why this is the case.
The 1906 San Francisco earthquake destroyed 28,000 buildings. It left over half the population homeless and claimed the lives of 3,000 people. What did we learn from the earthquake, and what changes did we implement after the earthquake? Have we done enough to prepare for the next big earthquake? In this article, we review discoveries related to geology, earthquake-induced fires, building performance, and the recovery process.
The 1906 San Francisco earthquake shook the city on Wednesday, April 18th at 5:12 am. Almost 300 miles of fault ruptured, and people felt shaking throughout California and parts of Oregon and Nevada. Today, the anniversary of the earthquake, is a great day to remember the effects of the quake and reflect on how we can prepare.