|
Getting your Trinity Audio player ready...
|
The USGS reported a small earthquake in Woodside on the afternoon of Aug. 19. The earthquake registered magnitude 2.5.
The quake was reported at 4:06 p.m. with an epicenter near the Farm Hill Road interchange with Interstate 280. The quake was at a depth of 3.9 kilometers.
Almost immediately local residents began using the USGS tool to report whether they felt the quake. As of 10 a.m. on Aug. 20, 209 people submitted a report with most saying they felt weak or light shaking. The quake was a 4 on the Modified Mercalli Intensity scale, which measures the intensity of an earthquake as felt by people near the site. A 4 quake is classified as light.
There was no reported damage or calls to the Woodside Fire Protection District, according to Chief Tom Cuschieri. The San Mateo County Sheriff’s Office, which serves Woodside and nearby cities in addition to unincorporated areas, also had no reports of damage.
While the earthquake’s origin was in Woodside, residents of nearby areas also felt it. West Menlo Park resident Kris De Lisle said she felt one quick shake in her home. Woodside Hills resident Linda Asti also felt a singular quick jolt that woke her from a nap.
Woodside is on the San Andreas Fault zone, which marks the border between the Pacific and the North American tectonic plates. The earthquake occurred on a Quaternary fault, which is a fault recognized from the surface that has moved in the past 2.6 million years.
Editor’s Note: This story was updated on Aug. 20 with additional information after the earthquake.
