Archive for the ‘California earthquake forecast’ Category
Posted by feww on October 23, 2012
DISASTER CALENDAR SYMBOLIC COUNTDOWN: 1,236 Days Left
[October 23, 2012] Mass die-offs resulting from human impact and the planetary response to the anthropogenic assault could occur by early 2016.
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SYMBOLIC COUNTDOWN: 1,236 Days Left to the ‘Worst Day’ in Human History
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Global Disasters/ Significant Events
Italy quake scientists guilty of manslaughter
Six scientists and a government official were convicted of manslaughter and sentenced to 6 years in prison by an Italian court for failing to give adequate warning of the 2009 deadly earthquake in L’Aquila that killed at least 309 people, left more than a thousand injured and destroyed tens of thousands of homes and other buildings.
- The prosecutors successfully argued that the experts had had provided “incomplete, imprecise and contradictory” statements, despite the warning signs, “playing down the threat of a repeat of the earthquakes which wrecked the town in 1349, 1461 and 1703, saying the smaller shocks were a ‘normal geological phenomenon,'” said a report.
- The prosecution had accused the seven, all members of a body called the National Commission for the Forecast and Prevention of Major Risks, “of negligence and malpractice in evaluating the danger and keeping the central city informed of the risks,” the report said.
- The Commission had met on March 31, 2009, a few days before the M6.3 earthquake struck, but failed to provide adequate information on the dangers despite clusters of low-level tremors that occurred the region in the months preceding the deadly quake.
- In addition to their sentences, the Commission members have been barred from ever holding public office again, La Repubblica reported.
- It remains to be seen whether the justice systems in the U.S., Japan and New Zealand, among other countries, would bring similar action against their scientists and officials for failing to warn the public about the deadly earthquakes and tsunami that have occurred in those countries.
- Any expert who asserts earthquakes were “inherently unpredictable” should not be allowed to hold office, or teach science. [All of the above, of course, is academic now.]
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Posted in California earthquake, California earthquake forecast, Global Disaster watch, global disasters | Tagged: earthquake, earthquake conviction, Earthquake prediction, earthquake warning, Intellectual rigor mortis, Italy earthquake, japan earthquake, L'Aquila, L'Aquila earthquake, La Repubblica, New zealand earthquake, Scientists Convicted, tsunami warning, U.S. Earthquake | Leave a Comment »
Posted by feww on September 24, 2009
For background and latest update see:
Up to three earthquakes measuring magnitude 6.2 or greater could strike Western US in 2009
California Earthquake Forecast: UPDATE #3
Magnitude 7.6 to 7.9 earthquake could strike the SF Bay Area, northern California in 2009
FEWW Moderators Forecast a magnitude 7.6 to 7.9 earthquake and two possible aftershocks measuring about 5.5 Mw (subject to the magnitude of the mainshock) for the San Francisco Bay Area, northern California in 2009.
Details of EQ Forecast
- Provisional date: September 28, 2009
- Date uncertainty: ~ 90 Days
- Epicenter: 37° 52′ 20″N, 122° 15′ 10″W
- Depth: 9.0 km
- Depth uncertainty: ±2.8 km
- Location: ~2.88 km (1.79miles ) east of Berkeley Fire Departments: Fire Prevention & Disaster Preparedness (CA 94702).
- Location uncertainty:
- Up to 5 km to the west of Hayward Fault
- Up to 14 km NNW within a 5-km corridor along the Hayward Fault
- Up to 22 km SSE within a 5-km corridor along the Hayward Fault
- Probability of of occurrence 0.8 [77%]

Map of N California Fault Lines. Source: USGS

Satellite map of forecast epicenter. Source: Google Maps [See terms of use for copyright information.]

FEWW Bay Area Earthquake Forecast Uncertainty Zone. Source: Google Earth [See terms of use for copyright information.]
Note: This forecast does NOT preclude the possibility of other seismic events in the area at any time.
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Posted in aftershock forecast, California earthquake, California earthquake forecast, earthquake forecast, seismic event forecast | Tagged: Bay Area, Berkeley, Calaveras Fault, Earthquake probability, earthquake rupture, GEOSTATISTICS, Hayward Fault, San Andreas Fault, San Francisco Earthquake, Seismic Hazard, SF Bay Area, tectonic stress | 57 Comments »
Posted by feww on August 11, 2009
California forecast earthquake may be more powerful than originally estimated
FEWW Moderators have upgraded their forecast for a California earthquake to a Magnitude 7.9 event.
For initial forecast see California Earthquake Forecast 2009 [March 24, 2009]
For Update # 1 see: California Earthquake Forecast 2009 – UPDATE [August 4, 2009]
San Andreas Fault

The topographic texture of western California is controlled by the San Andreas fault system, the tectonic expression of the Pacific plate sliding northwestward along the western margin of the North American plate. Hundreds of miles long and up to a mile wide, the San Andreas Fault Zone has been active since its original development in the Tertiary. About 10 percent of the present plate motion is compressional, which means horizontal forces are shortening and wrinkling the crust along the fault zone. This movement has created the parallel coastal northwest-southeast mountain ranges such as the Coastal Ranges along California’s central coast. Comparatively quiet during the period between the 1906 San Francisco earthquake and the 1989 Loma Prieta event, the fault is again showing activity. Image and caption: nationalatlas.gov

Fault map for San Francisco Bay Area from http://www.abag.ca.gov/bayarea/eqmaps/pickcity.html, annotated and colors modified by User: Leonard G. Released into the public domain (Leonard G. ).
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Posted in aftershock forecast, California earthquake, California earthquake forecast, earthquake forecast, seismic event forecas | Tagged: Earthquake probability, earthquake rupture, GEOSTATISTICS, San Andreas Fault, Seismic Hazard, tectonic stress | 16 Comments »
Posted by feww on August 4, 2009
For initial forecast see:
Based on the recent seismic activity in the Gulf of California, FEWW Moderators revise their forecast for California earthquakes in 2009 as follows:
(i) A magnitude 7.4 earthquake and two strong aftershocks (5.5+ Mw) could strike California in 2009 with a probability of 0.9 (88%).
(ii) The estimated date of occurrence: September 28, 2009
(iii) The occurrence date uncertainty: ~ +90 days from the forecast date
(iv) The epicenter is located in a built-up area. [Further information may be released later.]
(v) In addition to the above event, two other powerful earthquakes could strike the western United States in 2009. (Probability of occurrence for a single event is 77% and for the two events, 64%).
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Posted in aftershock forecast, California earthquake, California earthquake forecast, earthquake forecast, seismic event forecast | Tagged: Earthquake probability, earthquake rupture, GEOSTATISTICS, Seismic Hazard, tectonic stress | 5 Comments »