M7.1 Earthquake in The 1999 Hector Mine, California Earthquake
over 25 years ago
UTC: 1999-10-16 09:46:44
Your time: October 16, 1999, 09:46:44 GMT+0
Key Details
Magnitude
Major earthquakes can cause severe damage
Depth
Earthquakes are classified by depth: shallow (0-70 km), intermediate (70-300 km), and deep (300-700 km). This event occurred at a shallow depth of 13.7 kilometers.
Coordinates | 34.6033°N, 116.2650°W |
Depth | 13.7 km |
Magnitude Type | mw |
USGS Status | Reviewed by a seismologist |
Reports from the Public | 25123 reports |
Tsunami Risk | No significant tsunami risk flagged |
Epicenter location of the M7.1 earthquake, The 1999 Hector Mine, California Earthquake
Event Summary
This significant seismic event near The 1999 Hector Mine, California Earthquake has the potential to cause considerable damage, particularly in populated areas near the epicenter. The M7.1 earthquake occurred at a shallow depth of 13.7 kilometers, amplifying the ground shaking and influencing how seismic waves propagate through the Earth's crust. The geological context of this region suggests that earthquakes of this magnitude can trigger aftershocks, which may continue for days or weeks following the main event. Residents in affected areas should remain vigilant and follow updates from local authorities and emergency services. This seismic event was recorded by 73 seismic monitoring stations, providing valuable data for seismologists studying earthquake patterns and tectonic activity in the region. The earthquake's shallow depth classification indicates it originated within the Earth's crust, which affects the potential impact on surface structures. The mw magnitude type used to measure this event is particularly suited for regional seismic events. This measurement method provides crucial information about the earthquake's energy release and potential impact on surrounding areas.
🌍How Many Felt the Quake?
25123 people reported feeling this earthquake, with felt intensities reaching severe shaking (VIII) and estimated shaking up to severe shaking (VIII).
Did you feel the shaking? Your story matters—share it with the USGS to help map this quake's impact!
Safety Information
During an earthquake, remember to Drop, Cover, and Hold On. Stay indoors and take cover under a sturdy table or desk, protecting your head and neck. If you're outside, move to an open area away from buildings, trees, and power lines. After the shaking stops, check for injuries and damage, and be prepared for aftershocks. Residents in the affected area should be aware of potential secondary hazards that are common in your region. Prepare an emergency kit with essential supplies including water, non-perishable food, first aid supplies, flashlight, and batteries. Stay informed by following updates from local authorities and emergency services. Consider submitting a felt report to help seismologists better understand this event's impact.