First 240 Quakes in 24 Hours, Now Back-to-Back 4.3 Quakes off San Diego

First 240 Quakes in 24 Hours, Now Back-to-Back 4.3 Quakes off San Diego
4 Comments

"The Big One" seems to be well on its way for southern California; unusual shaking on the west coast continues to intensify. Over 240 earthquakes have struck the states of California and Nevada over the last 24 hours.  They're getting stronger, with back-to-back M4.3 quakes off San Diego this morning.

Yes, the west coast gets hit by quakes every day, but this is definitely an unusually high number. Fortunately, most of the earthquakes have been very small, but a couple of them were greater than magnitude 3.0  as can be seen on this map.

from the Los Angeles Times

A magnitude 3.3 earthquake was felt in parts of Southern California on Sunday afternoon, one in a series of quakes to hit the Riverside County area.

The latest quake occurred at 4:36 p.m. and was centered on Glen Avon, south of Fontana. The seismic activity continued into Monday morning with dozens of new small quakes.

According to the U.S. Geological Survey, the quakes were felt across swaths of the Inland Empire, a region that has had hundreds of small quakes over the weekend, including one that registered a magnitude of 3.1.

This comes during a stretch of time when there has been a heightened level of seismic activity along the west coast. For much more on this please see Michael Snyder's recent article entitled “California Is Shaken By More Than 80 Earthquakes As Chile Is Hit By The Largest Quake In 12 Years.” So when I got this latest news, I wanted to get this update out to you all right away.

Hopefully it will not happen immediately, but at some point there will be a history-altering earthquake along the southern California coastline that will cause death and destruction on a scale that most of us don’t even want to think about right now.

In fact, scientists have specifically warned us that someday a colossal earthquake “could plunge large parts of California into the sea almost instantly.”

Today, Wednesday June 5, two back-to-back Magnitude 4.3 earthquakes struck off the coast of San Diego at a VERY shallow depth of only 8.4km. 

These back-to-back quakes were unusual in their strength and could be a warning for California residents: PREPARE.

Unfortunately, most California residents will not care about these warnings until it is too late to do anything about them.  Those who realize that proper emergency preparations are a good idea, can view a list of selected "preps"  HERE

 

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  • This commment is unpublished.
    richard pryor · 2 months ago
    If you live in the area here is some key info to decipher.
    The date 23 (June?)
    6.5 magnitude
    fault on the curved section near Lytle creek affecting Fontana, Riverside, Loma Linda, Rancho C and others. Possibility was triggered by another quake
  • This commment is unpublished.
    Gifford Rodine · 2 months ago
    Possibly a valuable presentation of earthquake data would be to present the data by magnitude versus date versus major fault line. The title of each graph in the series would be "fault line name." The vertical axis would be magnitude, and the horizontal axis would be the date. The horizontal axis should show about 10 years of data. Then the data for the west coast fault lines could be reviewed to see if strain was being relieved by small earthquakes, or if strain was building up over the system that could result in a large earthquake. Just an engineers approach having done many load to failure tests. 20 years ago this would have been difficult, with today's computers, a piece of cake. We were in El Segundo for the 94 earthquake. It was a very sudden "jarring" as we got up that morning. No damage to us.
    • This commment is unpublished.
      Gifford Rodine · 2 months ago
      I did a search with DuckDuckGo to see if the data/graphs mentioned above and below are available. The data presented does not appear to include the items above or below. Also the data and its availability is NOT user friendly, even that presented by the USGS.. Again, just my opinion.
    • This commment is unpublished.
      Gifford Rodine · 2 months ago
      If possible a vector designation as to the direction of movement, vertical as well as 0 to 360 direction, would be valuable.
  • This commment is unpublished.
    Roger Coleman · 2 months ago
    ....lived through the '94 northridge quake, i was in reseda on a job, had the walls and ceiling cave in on me, one of my crew was on the the 405 north just entering the san fernando valley, watched the fwy roll like waves in the ocean, then all ltg went out, pitch black everywhere; was in santa monica the next day, same thing - a big mess, then in el segundo 2 days later, ...looked like nothing happened, can't find food etc close to home, drive 30 miles in any direction, no problem. ADVICE: keep your vehicles at least 1/2 full of fuel at all times.
  • This commment is unpublished.
    jack marsicano · 2 months ago
    i was born and raised in CA.(1944), i sure as hell won't die there.
    got 50 years in TEXAS