Did Sunday's East Bay Earthquake Rattle Your Nerves? Michigan's Quake Was Worse
CONCORD (CBS SF) – Before the East Bay felt the ground shake during a light earthquake Sunday, people 2,248 miles away in Michigan felt an even larger one.
The magnitude-4.2 earthquake that struck around 12:23 p.m. EDT Saturday near Kalamazoo was one of the strongest quakes ever experienced in Michigan.
Dozens of residents in several different regions beyond Kalamazoo and even as far as Cleveland, Ohio called the CBS Detroit newsroom and reported feeling a rumble and the ground shake for between five and 10 seconds.
Meanwhile here in Northern California, a string of light earthquakes rattled the East Bay.
The U.S. Geological Survey says an earthquake with a preliminary magnitude of 4.0 hit at 2:13 p.m. Sunday. That quake was later downgraded to a 3.6 by the USGS. It was centered a mile south of Concord, along the Concord fault.
A series of smaller quakes shook the area in the moments before and after the larger one. A magnitude 2.5 earthquake hit at 2:01 p.m., followed by the 3.6 at 2:13, and a 2.7 magnitude quake at 2:14 p.m. A magnitude 2.4 shook the area again at 2:28 p.m.
Scientists says the Concord fault has the potential to do major damage in the East Bay.
"If we saw a 6.0 on Concord, we could see far more damage than we did in Napa," USGS Seismologist Dr. David Schwartz told KCBS news following Sunday's quake.
Sunday's quakes may have ruptured a water line four miles away in Walnut Creek that was reported leaking about an hour after the shaking stopped.
COMPLETE QUAKE COVERAGE: CBS Earthquake Resource Center
DID YOU FEEL IT?: USGS Shake Map For Northern California
LIVE QUAKE MAP: Track Real-Time Hot Spots
BAY AREA FAULTS: Interactive Map Of Local Faults
Strong earthquakes with an epicenter off the coast can trigger tsunamis, depending on the size and type of the fault movement. The Pacific Tsunami Warning Center tracks earthquake data for the West Coast.
WEST COAST TSUNAMI TRACKING:
Tsunami Alerts & Maps
