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View Full Version : Duly corroborated facts for these days in California



Snowy Owl
21st October 2010, 15:53
Salutations to all,
Since few days highly moderate earthquaes is popping up mainly in Southern California


Accordingly today California is on a earthquakes exercices test.

Here is the last one that bugs me

Pictures available at
http://neic.usgs.gov/neis/bulletin/neic_a00042m9_l.html

Magnitude 4.7 GULF OF CALIFORNIA
Thursday, October 21, 2010 at 14:26:41 UTC



Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green


Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green


Map of MEXICO

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver

Remember a chain is as strong as its weakest point.
A weak point just been hit.

More informations as it comes along

SNowy

More infos on tectonic plates, earthquakes and volcanos cf to
http://www.flutrackers.com/forum/forumdisplay.php?f=1292

Snowy Owl
21st October 2010, 19:47
MAP 6.9 2010/10/21 17:53:15 24.843 -109.171 10.0 GULF OF CALIFORNIA

Strong earthquake hits Mexico
CNN - Mariano Castillo - ‎17 minutes ago‎
By the CNN Wire Staff (CNN) -- A 6.9-magnitude earthquake struck Mexico's Gulf of California on Thursday, the US Geological Survey reported. ...

The location is again on the fault but in a long strecht of it, still has to be monitered. The release od energy was huge maybe it is an off now, we will see in the next 24 hours

Snowy

Snowy Owl
21st October 2010, 20:49
Via Europe

Location provided by GFZ

Date: Thu, 21 Oct 2010 20:39:51 +0000 UTC
Autoloc alert gfz2010uqlt: determined by 29 stations, weight 29, type M

LocSAT solution (with start solution, 29 stations used, weight 29):

Gulf of California M=4.3 2010/10/21 19:21:59.3 24.63 N 109.14 W 16 km

http://www.emsc-csem.org/Earthquake/alert/index.php?id=HQV46;GFZ&date=2010-10-21

Snowy Owl
21st October 2010, 23:17
NOTA: The earthquake has been downgraded at 6.7 from 6.9 by USGS

Europe datas still the same

First glance at coast and structural damages

PAGER - M 6.7 - GULF OF CALIFORNIA

Alert Level: GREEN
Download Alert PDFWhat's this?Thursday, October 21st, 2010 at 17:53:14 UTC (11:53:14 local)Location: 24.8 N, 109.2 WDepth: 10kmEvent Id: US2010CRBLAlert Version: 2Created: 4 hours, 0 minutes after earthquake.
Global Location
Alert Information
Show graphs as tables
Estimated FatalitiesFatality Alert Level: GREEN
ESTIMATED FATALITY ALERT: GREENESTIMATED FATALITIES (LEVEL) Probability (%)
0 (GREEN)

65
1 to 9 (YELLOW)

30
10 to 99 (YELLOW)

4
100 to 999 (ORANGE) 0
1 to 10 thousand (RED) 0
10 to 100 thousand (RED) 0
100 thousand + (RED) 0
Estimated Economic LossesEconomic Alert Level: GREEN
ESTIMATED ECONOMIC ALERT: GREENESTIMATED VALUE IN USD (LEVEL) Probability (%)
0 to 1 million (GREEN)

65
1 to 10 million (YELLOW)

30
10 to 100 million (YELLOW)

4
100 million to 1 billion (ORANGE) 0
1 to 10 billion (RED) 0
10 to 100 billion (RED) 0
100 billion + (RED) 0
Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.
Detailed Information

* Summary
* Recent Earthquake History
* Full City Exposure List

Estimated Population Exposed to Earthquake ShakingEstimated Modified Mercalli Intensity I II-III IV V VI VII VIII IX XEst. Population Exposure ---* ---* 2,028k* 1,909k 0 0 0 0 0
Perceived Shaking Not Felt Weak Light Moderate Strong Very Strong Severe Violent Extreme
Potential Structure Damage Resistant none none none V. Light Light Moderate Moderate/Heavy Heavy V. Heavy
Vulnerable none none none Light Moderate Moderate/Heavy Heavy V. Heavy V. Heavy
*Estimated exposure only includes population within calculated shake map area
Population Exposure
Population per ~1 sq. km. from LandScan
Population Exposure Map
Structure Information Summary

Overall, the population in this region resides in structures that are a mix of vulnerable and earthquake resistant construction.
Historical Earthquakes (with MMI)
Date Dist (km) Mag Max MMI (#) Shaking Deaths
1988-06-18 279 6.6 V (652k) 0
1995-06-30 111 5.7 VII (50) 0
2000-03-24 375 5.6 VI (54k) 0

Selected Cities Exposedfrom GeoNames Database of Cities with 1,000 or more residents.
MMI City Population
V Topolobampo 8k
IV Culiacan 582k
IV Mazatlan 355k
IV Ciudad Obregon 258k
IV Los Mochis 215k
IV La Paz 171k
IV Guasave 68k
IV Guamuchil 59k
IV San Jose del Cabo 49k
IV San Lucas 43k
IV Ciudad Constitucion 40k

(k = x1,000)
Historical Events Map
Nearby Events in the EXPO-CAT Earthquake Catalog# Date/Time Mag Lat, Lon, Depth Country Max MMI (Exposed) Deaths Secondary Effects
Shaking Total
1 1974-05-31
14:05 UTC 6.4 27.53 N, 111.04 W
19km MX VI (16 k) 0 0
2 1975-09-24
17:19 UTC 5.8 25.17 N, 109.17 W
17km MX V (485 k) 0 0
3 1988-06-18
22:49 UTC 6.6 26.76 N, 110.98 W
9km MX V (652 k) 0 0
4 1990-03-16
15:52 UTC 6.1 24.83 N, 109.05 W
28km MX VI (61) 0 0
5 1995-06-30
11:58 UTC 6.2 24.7 N, 110.19 W
13km MX VI (20) 0 0
6 1995-06-30
13:41 UTC 5.7 24.53 N, 110.21 W
22km MX VII (50) 0 0
7 1995-08-28
10:46 UTC 6.5 26.05 N, 110.43 W
7km MX V (326 k) 0 0
8 2000-03-24
04:23 UTC 5.6 27.66 N, 111.24 W
25km MX VI (54 k) 0 0
9 2002-10-03
16:08 UTC 6.5 23.28 N, 108.57 W
28km MX VI (84) 0 0
10 2003-03-12
23:41 UTC 6.3 26.65 N, 110.56 W
32km MX VI (8 k) 0 0
MMI City Population
V Topolobampo 8k
IV Gabriel Leyva Solano 28k
IV General Juan Jose Rios 26k
IV Adolfo Ruiz Cortines 13k
IV Compuertas 4k
IV La Reforma 7k
IV Bagojo 4k
IV Ahome 11k
IV La Trinidad 4k
IV Angostura 5k
IV Higuera de Zaragoza 9k
IV Mochicahui 5k
IV El Burrion 4k
IV Guamuchil 59k
IV San Blas 6k
IV La Paz 171k
IV Sinaloa de Leyva 4k
IV Mocorito 5k
IV San Miguel Zapotitlan 6k
IV Navolato 28k
IV Culiacancito 4k
IV Campo Gobierno 21k
IV Guasave 68k
IV El Fuerte 11k
IV Culiacan 582k
IV Costa Rica 22k
IV El Dorado 14k
IV Quila 6k
IV San Jose del Cabo 49k
IV Los Mochis 215k
IV Yavaros 4k
IV El Rosario 15k
IV Constancia 6k
IV Badiraguato 4k
IV La Union 5k
IV Todos Santos 4k
IV Huatabampo 30k
IV Etchoropo 4k
IV Choix 8k
IV San Lucas 43k
IV Etchojoa 9k
IV El Carrizo 5k
IV La Cruz 12k
IV Ciudad Constitucion 40k
IV Loreto 11k
IV Villa Juarez 15k
IV Villa Insurgentes 9k
IV El Tobarito 9k
IV Pueblo Yaqui 15k
IV Alamos 9k
IV Rio Muerto 7k
IV Ciudad Obregon 258k
IV Campo Sesenta 6k
IV Cosala 6k
IV Guadalupe y Calvo 3k
IV Bacum 4k
IV Mazatlan 355k
IV Villa Union 14k
III San Ignacio 4k
III Mulege 4k

(k = x1,000)

PAGER results are generally available on the Internet within 30 minutes of the earthquake’s occurrence. However, information on the extent of shaking will be uncertain in the minutes and hours following an earthquake and typically improves as additional sensor data and reported intensities are acquired and incorporated into models of the earthquake's source. Users of PAGER estimates should account for uncertainty and always seek the most current PAGER release for any earthquake.

http://earthquake.usgs.gov/earthquakes/pager/events/us/2010crbl/index.html

Snowy Owl
21st October 2010, 23:20
Lignt aftershock

Earthquake Details

This event has been reviewed by a seismologist.
Magnitude
4.1
Date-Time
Thursday, October 21, 2010 at 22:38:35 UTC
Thursday, October 21, 2010 at 04:38:35 PM at epicenter
Time of Earthquake in other Time Zones
Location
24.667N, 109.507W
Depth
10 km (6.2 miles) set by location program
Region
GULF OF CALIFORNIA
Distances
100 km (60 miles) NE of La Paz, Baja California Sur, Mexico
135 km (85 miles) SSW of Los Mochis, Sinaloa, Mexico
160 km (100 miles) WSW of Guamuchil, Sinaloa, Mexico
1215 km (750 miles) WNW of MEXICO CITY, D.F., Mexico
Location Uncertainty
horizontal +/- 10 km (6.2 miles); depth fixed by location program
Parameters
NST= 55, Nph= 55, Dmin=117.5 km, Rmss=1.1 sec, Gp=140,
M-type=body wave magnitude (Mb), Version=7
Source
USGS NEIC (WDCS-D)
Event ID
usa00042v8

MariaDine
21st October 2010, 23:27
Moving constantly is good. When the plaques are not moving at all...then you should worry !

Snowy Owl
22nd October 2010, 00:34
Update time Fri Oct 22 0:20:25 UTC 2010

So far so good

So here are the datas that made start this thread, because the major event

MAP 5.7 2010/10/20 04:09:45 24.612 -109.061 14.4 GULF OF CALIFORNIA
MAP 5.5 2010/10/20 04:15:37 24.532 -109.104 10.0 GULF OF CALIFORNIA
MAP 4.7 2010/10/20 04:30:38 24.282 -109.266 10.0 GULF OF CALIFORNIA
MAP 4.2 2010/10/20 05:51:23 24.353 -109.110 10.7 GULF OF CALIFORNIA
MAP 5.8 2010/10/20 06:58:16 24.624 -108.993 10.0 GULF OF CALIFORNIA
MAP 4.4 2010/10/20 07:35:45 24.333 -108.950 10.1 GULF OF CALIFORNIA
MAP 4.7 2010/10/21 14:26:42 24.558 -109.288 26.0 GULF OF CALIFORNIA
MAP 4.2 2010/10/21 15:14:09 24.509 -109.168 10.0 GULF OF CALIFORNIA
MAP 4.6 2010/10/21 15:38:07 24.844 -109.160 26.8 GULF OF CALIFORNIA