California earthquakes

Updated: 11/14/2017 12:18:46 AM
Continuing the daily shaking of the area, California has hit with latest 4.6 magnitude earthquake this Monday evening, near the city of Gonzales.
According to seismologist, this was a strongest earthquake in seismic active area for months.
Source: DORRIS
Updated: 10/26/2017 2:43:43 PM
Less than an hour ago, California has hit with two eathquakes measured 4.6 and 4.3 magnitude with a depth of 9 km near Lompoc City.
It comes after a magnitude 3.6 tremor shook northwest Los Angeles after striking in the Santa Monica mountains.
And now experts warn the chance of a magnitude 8 quake, or larger, striking in the next 30 years has doubled since 2008.
Source: DORRIS
Updated: 10/24/2017 10:59:54 PM
A 3.9 magnitude earthquake rattled just off the coast of San Clemente on Tuesday, according to the U.S. Geological Survey.
The earthquake hit at 12:01 a.m. about 10 miles off the San Clemente coast, the USGS reported.
Dozens of Southern California residents from Long Beach, Los Angeles and Rancho Palo Verdes reported feeling a light rattle to a heavy shaking.
No injuries or structural damages have been reported.
Source: DORRIS
Updated: 10/23/2017 9:48:30 AM
California has not been struck by a magnitude 7 or greater earthquake since a colossal rupture in the San Andreas Fault laid waste to San Francisco in 1906.
The massive magnitude 7.8 earthquake reduced buildings to rubble in less than a minute, killing around 7,500 people and destroying 80% of the city.
Experts believe there is a 70% chance a tremor on a similar scale will strike the Bay Area of San Francisco within the next 30 years.
Seismologist Peggy Hellweg, from the University of California, has told Daily Star Online that the region is not prepared to deal with the fallout from such an earthquake.
She said that a magnitude 7 or greater earthquake could kill “tens of thousands of people”.
In financial terms, such a quake would likely cause “tens to hundreds of billions of dollars in damage”, she said.
She said: “A magnitude 7 or greater earthquake can happen any time, almost anywhere in the state.
“I don't expect one to happen tomorrow, but I wouldn't be surprised if it did.”
Source: DORRIS
Updated: 10/21/2017 8:36:11 AM
CALIFORNIA was struck by 40 earthquakes on the same day more than 10.2 million people prepared for a “big one” by holding emergency drills.
The largest quake measured 3.5 magnitude and struck around 11.45 local time at a depth of 7km near Greenfield, around 192km from San Francisco.
Thirteen of the tremors were over 2.0 magnitude, while the rest were between 1.0 to 2.0 magnitude, according to Earthquake Track.
Although relatively small, the wave of earthquakes will entrench fears that a massive tremor measuring 7.0 or above could strike the region.
Scientists believe the US state is overdue a “big one” magnitude 7 or over earthquake by decades.
David Schwartz, geologist for US Geological Survey, said the most worrying fault line passes through the “most densely populated part of the Bay Area”.
More than 7.4 million people live near the Hayward Fault – one of many fault lines experts are concerned about.
“The Bay Area is positioned in the middle of the boundary zone of the North American plate and Pacific plate,” Schwartz said.
Source: DORRIS
Updated: 10/20/2017 2:21:16 PM
Terrifying new Mega Fault found beneath California with power to cause Big One!
Scientists have left Californians terrified after they revealed two fault lines in the state are connected and form a "mega fault" system.
It had been thought that the Newport-Inglewood and Rose Canyon fault zones were separated by a three mile gap and that they were not connected.
But a more recent study has led scientists to the conclusion the gap is no more than 2 km, which suggests they are intricately linked.
Part of the fault lines run underwater, which was part of the reason that it was so difficult to detect that it was connected.
By using acoustic waves and bouncing them off the sea bed floor, the seismologists found that the fault lines were indeed connected.
They write in their research paper: "Four main fault strands are identified offshore, separated by three main stepovers along strike, all of which are 2 km or less in width.
However, the researchers note that thew risk is small at the moment as the lines are only pushing against each other at a rate of a 3.5 cm a year.
Source: DORRIS
Updated: 10/19/2017 2:25:08 PM
The world’s largest earthquake drill taking place today will see 10.2 million practice what they will do when an “inevitable” earthquake hits the US.
Millions of citizens will simultaneously drop to the floor, duck under tables and cover their heads for a minute of imagined seismic destruction in the ‘Great Shakeout’.

The 'Great ShakeOut' is an annual drill that happens in California, first held nine years ago in the Los Angeles area to prepare the region's inhabitants for a catastrophic quake that experts say is inevitable and long overdue.

ShakeOut organisers said: “To react quickly you must practice often.
"You may only have seconds to protect yourself in an earthquake, before strong shaking knocks you down or drops something on you.
“Practicing helps you be ready to respond."

Following the drill, the city fire department, American Red Cross, police and other agencies will stage a full-scale earthquake-response exercise, setting up a medical triage area, emergency shelters and mass-feeding operation.
The drill is based on the premise of a magnitude 7.8 quake striking the southern end of the San Andreas Fault, a chasm between two massive plates of the Earth's crust that extends hundreds of kilometers across California.

As of late Wednesday, nearly 53 million participants were registered for ShakeOut drills worldwide, including more than 10.2 million in California, organisers said.
Source: DORRIS

Published Thursday, October 19, 2017

CALIFORNIA has been rocked by 28 earthquakes in just 24 hours, sparking fears a “big one” could roar across the US state without warning.
Scientists have warned the US state is overdue a “big one”, with a magnitude of 8 or more, after Los Angeles, San Francisco and Sacramento were all rattled by a series of 1.5 magnitude quakes in a day.

The largest earthquake measured 2.6 magnitude and hit at around 4.30am local time with a depth of 23km near Tuolumne City.
It comes after a magnitude 3.6 tremor shook northwest Los Angeles after striking in the Santa Monica mountains.
And now experts warn the chance of a magnitude 8 quake, or larger, striking in the next 30 years has doubled since 2008.

The warnings come in the wake of the colossal 7.1 magnitude Mexico earthquake, which left more than 300 people dead.
Experts say a major quake dubbed the “Big One” could strike along the San Andreas fault after pressure built over the past 150 years.
Source: DORRIS

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California earthquakes at DORRIS - Emergency Management Communication System

California earthquakes Facts

Power: 0
Affected Area: 2000 km.
Alert Level: Green
Category: Geo
Response: Monitor
Severity: Unknown
Urgency: Future
Certainty: Observed

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