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Netscape 800x600 JUNE 9, 1998, BIG MAMA AWAKES
Tue Jul 14 21:59:05 PDT 1998
The Long Valley Caldera was formed some 700,000 years ago by an eruption 600 times the size of the one at Mount St. Helens.
EARTHQUAKE ANIMATION & DATA SITECURRENT USGS MAMMOTH QUAKESLVO: Long Valley ObservatoryPREHISTORIC ERUPTIONEARTHQUAKE INDEXSEISMOGRAM
larger updated ongoing event animation (Pending) CNN: Magnitude 5.1 quake jolts eastern California Mammoth Lakes Swarm ContinuingThe earthquake swarm at Mammoth Lakes [Long Valley Caldera] that kicked off with the 5.1 earthquake overnight is still going strong late this morning. Since that original quake, there have been over 200 tremors reported... five of which were 3+. This is by far the greatest activity observed in the Caldera region so far in 1998. For those who are not familiar with it, Mammoth Lakes also known as Long Valley Caldera... is a large volcanic caldera [collapsed cone] along the California-Nevada border region. It has not erupted in 500 years, but geologists have constructed a map based on sedimentary rock samples that shows that one eruption long ago was massive enough to have covered the western third of the United States in volcanic ash. I have a copy of this map if anyone would like to receive it via email. In the few years that I have been monitoring it's activity, it has produced large swarms before, but the magnitude of the first quake of this swarm [5.1] and the volume per hour of subsequent tremors makes this one of the greatest swarms in recent years. Swarms are often, though ~certainly~ not always, indicators of an oncoming eruption.
EDITOR'S NOTE: Having once lived in the Central Valley, CA, I have long noticed that Mammoth activity seems to send quakes along the fault lines into the Coalinga-Gilroy-Santa Cruz areas perhaps setting off the San Andreas Fault. Here is a recent Cal quake map: DATE-(UTC)-TIME LAT LON DEP MAG Q COMMENTS 98/06/15 01:59:22 37.04N 121.48W 8.6 4.0Ml CENTRAL CALIFORNIA
ANCIENT ERUPTION
. Gordon-Michael Scallionmore maps and ordering infoART BELL
"Nature itself does not speak with a voice that we can easily understand. Neither can the animals and birds that we are threatening with extinction talk to us. Who in this world can speak for nature and the spiritual energy that creates and flows through all life?" ART BELL (go to second hour) ". . .there has already been a lot of controversy about these elders, stepping out, speaking like this to the world and they have had threats made against them already, so we have taken precaution to make for sure that they're basically safe." The Charlotte King Effect - Biological Earthquake Prediction |
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