A 2.3 magnitude earthquake struck near Petrolia, California, on November 8, 2023. The seismic event occurred at 10:19 a.m., with its epicenter located approximately 18 miles west of Petrolia. The quake struck at a depth of 12 miles, as reported by the U.S. Geological Survey (USGS).
Recent Earthquake Activity Around Petrolia
This recent quake follows another tremor in the region, which measured 2.8 in magnitude and occurred just a day prior. These events highlight the seismic activity in northern California.
Understanding Earthquake Magnitudes
The magnitude of an earthquake indicates the energy released during the event. The USGS updated the measurement system, replacing the older Richter scale. Earthquakes that fall between 2.5 and 5.4 in magnitude are typically felt but seldom cause significant damage, as noted by Michigan Tech. In contrast, quakes below 2.5 are rarely perceptible to most people.
Here are some statistics regarding earthquake occurrences:
- Approximately 500,000 detectable earthquakes occur globally each year.
- Out of these, around 100,000 can be felt.
- Only about 100 of these earthquakes cause damage.
Safety Tips During an Earthquake
- If you are in a car: Pull over, stop, and set your parking brake.
- If you are in bed: Turn onto your face and cover your head with a pillow.
- If you are outdoors: Stay clear of buildings; do not enter them.
- If you are indoors: Stay put and avoid running outside; move away from doorways.
The best practice is to drop, cover, and hold on. To protect yourself:
- Drop down to your hands and knees.
- Cover your head and neck with your arms. If possible, crawl under a sturdy table.
- If no shelter is available, move to an interior wall away from windows.
After experiencing an earthquake, be alert for hazards such as gas leaks, damaged structures, and downed power lines. Expect aftershocks, and be prepared to repeat the drop, cover, and hold on procedure if necessary.
For those who felt the recent quake, sharing your observations can aid in understanding these seismic events. Consider using the USGS Felt Report form to contribute your experience.
