Chef-Geologe von Seismo-Watch: Die Erde hat weltweit geschüttelt. Bereithalten.

Geschrieben von Mischel am 27. Mai 2003 15:21:20:

Als Antwort auf: schnell wachsender Sonnenfleck geschrieben von franz_liszt am 27. Mai 2003 00:40:36:

Leider kann ich die Seriösität der Quelle nicht beurteilen.
Zumal der Chef-Geologe eben für die Zeitung arbeitet, die den Bericht publiziert, wenn ich das recht sehe
Gruß Mischel


May 27, 2003

..."An earthquake that jolted Santa Rosa this week wasn't on the Rodgers Creek
Fault, but on a nearby line, earthquake experts said Monday.

The new information came even as two more minor earthquakes were reported in
the Bay Area. One, registering magnitude 3.4, was several miles off the coast
of San Francisco. The other, a magnitude 3.8, was in San Jose, reported the
U.S. Geological Survey.

The magnitude 4.3 temblor that rocked the heart of Sonoma County early Sunday
was the strongest to hit Santa Rosa since 1969.

Early reports indicated that it was located on the locally well-known Rodgers
Creek Fault. But further measuring indicated it was on a splay between that
fault and the Healdsburg Fault, said Charles Watson, chief geologist with
Seismo-Watch, a private company that tracks and maps earthquakes for the Press
Democrat.

The 12:09 a.m. earthquake jolted Santa Rosa residents out of bed and sent many
running outside. It also knocked photos from walls and items off of store
shelves and caused some new wall cracks in older homes. There were no injuries
reported.

Watson said the Santa Rosa earthquake ran on a line slightly east of the
Rodgers Creek Fault. It was located one mile northeast of downtown and
one-quarter mile east of Proctor Terrace Elementary School.

"The last earthquake to cause damage in Sonoma County were the two quakes back
in '69, the pair of 5.6s. People near Santa Rosa haven't felt a good jolt in
awhile," Watson said.

Earthquakes, typical for the Geysers area in northern Sonoma County, also have
increased in numbers there recently.

"Activity at the Geysers comes and goes. It just so happens this spring has
been a time in which activity increased," Watson said.

And not just there, but more have occurred in Northern California and
worldwide, Watson said.

Last week a magnitude 6.8 quake struck in Algeria in North Africa. Monday there
were two more major quakes in the world, a magnitude 7.0 in Japan and a
magnitude 6.4 in Indonesia.

"In the last few days the whole earth has been shaking a lot," Watson said.

USGS spokeswoman Stephanie Hanna said Monday that this flurry of earthquakes is
a good time to assess readiness.

"If you need a wake-up call, make it a wake-up call," Hanna said.

Monday's minor Bay Area quakes were on separate faults and none of the several
recent shakers has been in unusual places.

"It's not like something is building up," Hanna said.

It just goes to show that the San Francisco Bay region has some major faults,
she said.

On average, California has 20 to 30 earthquakes each day.

San Francisco's jolt Monday hit at about 2:15 p.m. It was centered about eight
miles west of the Golden Gate Bridge.

San Jose area residents got theirs at 3:01 a.m. Law enforcement officials in
both places said there were no reports of damage or injuries -- and few calls
from startled citizens.

The San Francisco quake was felt throughout lower Marin County and as far south
as San Jose, Watson said"...

http://www.pressdemocrat.com/local/news/27quakes_b1.html



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