Table of Contents
When was the San Simeon earthquake?
December 22, 2003
2003 San Simeon earthquake/Start dates
A magnitude 6.5 earthquake struck the central California coast on December 22, 2003 at 11:15:56 am (PST). The event was located 11 km NE of San Simeon, and 39 km WNW of Paso Robles, where the brunt of the damage and casualties occurred. Two deaths have been confirmed due to a building collapse in Paso Robles.
How big was the Paso Robles earthquake?
A magnitude 3.5 earthquake was reported at 8:07 a.m. Wednesday 13 miles from Paso Robles, Calif., according to the U.S. Geological Survey. The earthquake occurred 17 miles from Avenal, 23 miles from Coalinga, 26 miles from Atascadero and 37 miles from San Luis Obispo.
What damage did the San Andreas Fault cause?
A different USGS study in 2008 tried to assess the physical, social and economic consequences of a major earthquake in southern California. That study predicted that a magnitude 7.8 earthquake along the southern San Andreas Fault could cause about 1,800 deaths and $213 billion in damage.
How much damage will San Andreas cause?
Death and damage About 1,800 people could die in a hypothetical 7.8 earthquake on the San Andreas fault — that’s according to a scenario published by the USGS called the ShakeOut. More than 900 people could die in fires, more than 600 in building damage or collapse, and more than 150 in transportation accidents.
How long did the 2003 San Simeon earthquake last?
The 2003 San Simeon earthquake struck at 11:15 PST (19:15 UTC) on December 22 on the Central Coast of California, about 7 miles (11 km) northeast of San Simeon….2003 San Simeon earthquake.
| Los Angeles San Simeon Paso Robles | |
|---|---|
| UTC time | 2003-12-22 19:15:56 |
| Total damage | $250–300 million |
| Max. intensity | VIII (Severe) |
| Casualties | 2 killed 40 injured |
When was the last earthquake in Paso Robles California?
Latest earthquakes near Paso Robles, San Luis Obispo County, California, USA, past 7 days
| Date and time | Mag Depth | Map |
|---|---|---|
| Sat, Aug 28, 2021 (GMT) (1 earthquake) | ||
| Aug 28, 2021 1:57 pm (GMT -7) (Aug 28, 2021 20:57:26 GMT) 1 day 3 hours ago | 0.7 4.2 km | Map |
| Fri, Aug 27, 2021 (GMT) (3 earthquakes) |
What caused San Simeon earthquake?
Probably centered in the Oceanic fault zone within the Santa Lucia Mountains, it was caused by thrust faulting and the rupture propagated southeast from the hypocenter for 12 miles (19 km)….2003 San Simeon earthquake.
| Los Angeles San Simeon Paso Robles | |
|---|---|
| UTC time | 2003-12-22 19:15:56 |
| Local time | 11:15 |
| Magnitude | 6.6 Mw |
| Depth | 10 mi (16 km) |
Was the earthquake felt in Paso Robles?
People felt the earthquake as far north as the Bay Area and as far south as Nipomo, according to a USGS map. It was felt as far east as the foothills beyond Fresno. Residents in Paso Robles and the North County likely felt the impact the most.
What was the cause of the San Simeon earthquake?
The USGS investigation identified two earthquake hazards in Oceano that explain the San Simeon earthquake damage–site amplification and liquefaction. Site amplification is a phenomenon observed in many earthquakes where the strength of the shaking increases abnormally in areas where the seismic-wave velocity of shallow geologic layers is low.
What was the law after the 2003 San Simeon earthquake?
Following the event, California enacted A.B. 2533, amending the California Business and Professions Code § 8875.8, requiring that certain unreinforced masonry buildings that have not been seismically retrofitted have posted notice of the potential earthquake hazard. The law was called Jenna’s Bill, after Jennifer Myrick, who died in the quake.
What was the damage to George H Flamson Middle School?
The earthquake also caused extensive damage to George H. Flamson Middle School. The main building was damaged and had to be demolished in 2004. A new building reflecting the original 1924 building was opened for use in August 2010.
How is liquefaction a problem in the Oceano area?
The USGS investigation indicates that the shallow geologic units beneath Oceano are very susceptible to liquefaction. They include young sand dunes and clean sandy artificial fill that was used to bury and convert marshes into developable lots.