Following a 6.4-magnitude earthquake on Thursday, July 4, and a 7.1-magnitude one on Friday, July 5, -- both of which originated near Ridgecrest in Southern California -- seismologists are warning against the aftershocks and emphasizing the value of preparedness across the state.
"We estimate that there is a 1 in 10 chance that Searles Valley will see another M7. That is a 9 in 10 chance tonight's M7.1 was the largest," tweeted Lucy Jones, a California Institute of Technology seismologist, about the probability of a greater earthquake.
While these earthquakes were not felt by many in the San Francisco Bay Area, there is a 62% probability that at least one earthquake of magnitude 6.7 or greater will occur on a known or unknown fault in the region before 2032, according to a report by the U.S. Department of the Interior and U.S. Geological Survey.
"As Californians, we always have to be prepared for the next earthquake," said Gov. Gavin Newsom. The state is considered to be one of the three high-risk areas by the Department of Homeland Security, along with Alaska and the Mississippi Valley.
Before and earthquake, some steps to take for safety include strengthening the building, securing objects that might fall and gathering critical documents like identification, legal and medical files, according to the Federal Emergency Management Agency (FEMA).
Assembling an emergency supply kit should also be a priority, and FEMA recommends having these items in the kit:
Water: Make sure you have a gallon per person per day for at least three days;
Food: Store at least a three-day supply of nonperishable foods, including infant formula and pet food;
Flashlight, radio and cellphone charger;
Medical: Include a first aid kit and both prescription and over-the-counter medications;
Assistive technology: Include battery backup power for power-dependent mobility devices, oxygen and other assistive technology needs;
Clothing and blankets;
Whistle: Include a whistle to signal for help;
Cash: Store cash in case ATMs are not functioning after the earthquake.
Visit www.ready.gov/earthquakes to learn more about earthquakes and resources available before, during and after one.