Alex Morelan
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Alex Morelan
@amorelan3.bsky.social
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Geologist at the California Geological Survey interested in tectonic and surface process hazards including but not limited to earthquake surface rupture, debris flows, and landslides
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Reposted by Alex Morelan
earthjay.bsky.social
#EarthquakeReport for M 5.2 #Earthquake near #Julian #California

the Elsinore fault is not as active as the San Jacinto fault to the east
map = 100 years M5 earthquakes
~90 aftershocks so far

tectonic background in '24 report: earthjay.com?p=11968

earthquake.usgs.gov/earthquakes/...
April 14, 2025 at 6:19 PM
Reposted by Alex Morelan
cageosurvey.bsky.social
A M5.2 earthquake occurred near Julian (San Diego County) in southern California. Shaking was felt 115 miles to the north in CGS' downtown LA office. Felt aftershocks are possible. CGS is monitoring this area. #earthquake #julian”
This ShakeMap shows the ground shaking intensity from a magnitude 5.2 earthquake that occurred on April 14, 2025. The epicenter is marked with a black star and located just south of Julian, California, in San Diego County. The shaking intensity is represented using the Modified Mercalli Intensity (MMI) scale, with colors ranging from green (light shaking) near the epicenter to blue (weak shaking) farther out. The strongest shaking (MMI V to VI) was felt in the mountains and foothill regions northeast of San Diego, including areas near Mira Mesa and Encinitas. Seismic instrument locations are shown as triangles, and community-reported intensities are marked with small circles. Cities across Southern California and northern Baja California, including San Diego, Oceanside, Riverside, and Tijuana, experienced weak to light shaking. The scale at the bottom links MMI levels to estimated damage and ground motion levels, helping to interpret the impact across the region
April 14, 2025 at 5:51 PM