San Francisco, CA – Thousands of residents reported feeling two earthquakes near the San Francisco Zoo on Friday. The back-to-back quakes struck the area within hours, causing widespread tremors.
According to the U.S. Geological Survey (USGS), the first quake, measuring 3.7 magnitude, occurred at 7:02 a.m. PST. Its epicenter was about five kilometers northwest of the zoo at a depth of 8.4 kilometers. A second quake, measuring 2.5 magnitude, followed at 9:39 a.m. PST. This aftershock originated from the same area at a depth of 7.7 kilometers.
USGS data shows that over 5,000 individuals reported feeling the larger quake, categorized as intensity level IV on the Community Internet Intensity Map. Reports described light shaking but no significant damage. The smaller aftershock, though weaker, drew at least 60 citizen reports.
San Francisco officials urged residents to remain prepared for aftershocks. “The quakes serve as a reminder of the region’s seismic activity. Emergency kits and readiness plans are crucial,” a city spokesperson said.
Local businesses near the zoo paused operations briefly, citing safety checks. Visitors at the zoo described feeling the ground move but continued their activities without evacuation orders.
Seismologists explained that the quakes stemmed from faults in the region, which remains highly active. While these events did not cause structural damage, they highlight the importance of earthquake preparedness in California.
Experts advise residents to secure heavy furniture and practice safety drills at home. Local authorities continue monitoring for any further seismic activity in the area.
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