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Originally posted by CaptainKostr
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Earth Quake Predictions, Hell I want Earthquake Prevention! lol
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Practically, band gaps properties of sonic crystal structures were used in application of reduction of vibrations or sound wave. In this study, we consider crystal structures for suspension of destructive seismic waves from an earthquake in a theoretical manner. Accordingly, we referred these crystals as Seismic Crystal and application of isolating a region from destructive seismic wave as Earthquake Shielding
Magnitude
3.1
Date-Time
Saturday, October 08, 2011 at 18:55:21 UTC
Saturday, October 08, 2011 at 11:55:21 AM at epicenter
Location
35.492°N, 118.391°W
Depth
4 km (2.5 miles)
Region
CENTRAL CALIFORNIA
Distances
17 km (11 miles) SSE (157°) from town of Lake Isabella, CA
17 km (11 miles) SSW (197°) from Weldon, CA
27 km (17 miles) SW (216°) from Onyx, CA
60 km (37 miles) ENE (75°) from Bakersfield, CA
160 km (100 miles) N (355°) from Los Angeles Civic Center, CA
Location Uncertainty
horizontal +/- 0.3 km (0.2 miles); depth +/- 1 km (0.6 miles)
Parameters
Nph= 69, Dmin=20 km, Rmss=0.29 sec, Gp= 47°,
M-type=local magnitude (ML), Version=0
Source
California Integrated Seismic Net:
USGS Caltech CGS UCB UCSD UNR
Event ID
ci15060820
Volcanic eruption alert on Spanish Canary Island
The regional government of the Spanish Canary Island of El Hierro has issued a volcanic eruption alert following almost 10,000 small tremors recorded in the past three months. The government posted a yellow alert — second level in a scale of four — Sunday and closed some hillside roads and a tunnel to avoid possible injury by falling rocks. The island's 11,000 residents have been told to monitor communications by the civil protection authority. The island was shaken late Saturday by a 4.3-magnitude quake. Seismic activity began in the area on July 17.
Dr Simon Day, who works at the Benfield Greig Hazards Research Centre, University College London*, says that one flank of the Cumbre Vieja volcano on the island of La Palma, in the Canaries, is unstable and could plunge into the ocean during the volcano's next eruption.
Dr. Day says: "If the volcano collapsed in one block of almost 20 cubic kilometres of rock, weighing 500 billion tonnes - twice the size of the Isle of Wight - it would fall into water almost 4 miles deep and create an undersea wave 2000 feet tall. Within five minutes of the landslide, a dome of water about a mile high would form and then collapse, before the Mega Tsunami fanned out in every direction, travelling at speeds of up to 500 mph. A 330ft wave would strike the western Sahara in less than an hour."
Abstract. Geological evidence suggests that during a future eruption, Cumbre Vieja Volcano on the Island of La Palma may experience a catastrophic failure of its west flank, dropping 150 to 500 km3 of rock into the sea. Using a geologically reasonable estimate of landslide motion, we model tsunami waves produced by such a collapse. Waves generated by the run-out of a 500 km3 (150 km3) slide block at 100 m/s could transit the entire Atlantic Basin and arrive on the coasts of the Americas with 10-25 m (3-8 m) height.
2011 Unrest An earthquake swarm occurred at El Hierro volcano in July 2011 with 720 earthquakes measured in a week. The earthquakes were measured between magnitude 1-3, and most were at a depth of 5-15 km. The swarm occurred at El Golfo in the northwest of the island at the location of a landslide that created a 100 metre high tsunami about 50,000 years ago. The earthquakes were continuing at the end of September and some evacuations were ordered for people living near the volcano.
Magnitude
3.0
Date-Time
Sunday, October 09, 2011 at 11:47:00 UTC
Sunday, October 09, 2011 at 04:47:00 AM at epicenter
Time of Earthquake in other Time Zones
Location
33.708°N, 119.407°W
Depth
0.1 km (~0.1 mile) (poorly constrained)
Region
CHANNEL ISLANDS REGION, CALIFORNIA
Distances
53 km (33 miles) N (10°) from San Nicolas Is., CA
53 km (33 miles) SSW (199°) from Channel Islands Beach, CA
54 km (34 miles) SSW (201°) from Port Hueneme, CA
58 km (36 miles) SSW (201°) from Oxnard, CA
114 km (71 miles) WSW (250°) from Los Angeles Civic Center, CA
Location Uncertainty
horizontal +/- 0.6 km (0.4 miles); depth +/- 1.7 km (1.1 miles)
Parameters
Nph= 38, Dmin=38 km, Rmss=0.49 sec, Gp=104°,
M-type=local magnitude (ML), Version=1
Source
California Integrated Seismic Net:
USGS Caltech CGS UCB UCSD UNR
Event ID
ci15061092
3.0 2011/10/09 04:47:00 33.708N 119.407W 0.1 53 KM (33 MI) N OF SAN NICOLAS IS., CA
3.1 2011/10/08 11:55:21 35.492N 118.391W 4.0 17 KM (11 MI) SSW OF WELDON, CA
4.0 2011/10/07 15:10:10 36.915N 117.514W 0.0 20 KM (13 MI) SW OF SCOTTYS CASTLE, CA
3.2 2011/10/05 00:36:19 33.479N 116.454W 14.7 22 KM (14 MI) ESE OF ANZA, CA
Lithospheric thickness along the San Andreas fault has been investigated by using delay times of teleseismic arrivals and thermal models (Zandt and Furlong, 1982). These studies indicate a lithospheric thickness of only 30 to 60 km for much of western California, and as little as 20 km for northern California just south of Cape Mendocino. These lithospheric thicknesses contrast with averages of 60 to 80 km for the Western United States and 120 to 170 km for the Central and Eastern United States (Iyer and Hitchcock, 1989)...... This geometry produces the thinnest lithosphere in California and, probably, in North America.
The crust along the San Andreas fault system thickens from about 16 km at Cape Mendocino, in northern California, to about 30 km in southern California and thus is significantly thinner than the average thickness (36 km) for the conterminous United States. Lithospheric thickness (20-60 km) is also substantially less along most of the San Andreas fault system than is typical for continental areas (60-170 km). The lithosphere is thinnest at both ends of the fault system, at the Mendocino triple junction on the north, where the North American plate is sliding off the edge of the Gorda plate as it moves northward, and in the Salton Trough on the south, where onshore spreading centers of the East Pacific Rise are generating new crust in a rift between the North American and Pacific plates. In contrast, the lithosphere is abnormally thick (250 km) in the Tranverse Ranges, where "subduction" of lithospheric mantle is occurring.
Magnitude
4.2
Date-Time
Monday, October 10, 2011 at 05:39:32 UTC
Sunday, October 09, 2011 at 10:39:32 PM at epicenter
Time of Earthquake in other Time Zones
Location
50.606°N, 129.663°W
Depth
30.8 km (19.1 miles)
Region
VANCOUVER ISLAND, CANADA REGION
Distances
158 km (98 miles) W of Port Hardy, British Columbia, Canada
201 km (124 miles) SSW of Bella Bella, British Columbia, Canada
492 km (305 miles) WNW of Vancouver, British Columbia, Canada
516 km (320 miles) WNW of VICTORIA, British Columbia, Canada
Location Uncertainty
horizontal +/- 28.5 km (17.7 miles); depth +/- 10.8 km (6.7 miles)
Parameters
NST=154, Nph=155, Dmin=552.1 km, Rmss=1.17 sec, Gp=173°,
M-type=body wave magnitude (Mb), Version=7
Source
Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)
Event ID
usc00066t8
Originally posted by jadedANDcynical
It seems as though crystalline structure has what are termed "band gaps" which is a way of saying that certain portions of certain frequencies are not transmitted via that medium (crystal structure) resulting in a scattering or damping of the energy passing through the structure.
MRH NC 36.2863 -119.0871 432 "EHE EHN EHZ ELE ELN ELZ SHZ SLE SLN SLZ " "Rocky Hill" 1993,126,21:30:00 2500,365,23:59:59.9999