Showing posts with label earthquake. Show all posts
Showing posts with label earthquake. Show all posts

Sunday, August 24, 2014

The essence of being human









A magnitude-6.0 earthquake struck the North Bay early Sunday, injuring more than 100 people, causing extensive damage to dozens of buildings in downtown Napa and Vallejo... - SF Chron

Napa earthquake: Residents share photos of damage
Mercury News

Friday, April 15, 2011

Swarm of (Nevada) Quakes have Experts Concerned

Swarm of Quakes have Experts Concerned
Nevada Seismologists are keeping a close eye on an area southwest of Hawthorne, Nevada where hundreds of earthquakes have been detected since Sunday.

" It's a little bit concerning in a sense.. The largest earthquakes in these sequences are pretty large in size." Graham Kent is Director of Nevada Seismological Laboratory at the University of Nevada Reno. He says there have been hundreds of earthquakes southwest of Hawthorne over the past few days. The largest-- recorded at a 4.4 in size....

Size is not the only reason Kent says they are watching the swarm of quakes closely. The location of these quakes is on top of a fault that has until now remained unknown or has not been active. Kent then made an eerie comparison, "Whats really interesting about most of these earthquakes we've experienced. Short of the Chilean and Japanese; Haiti, Baha, even Christchurch.. Were on unknown faults....

Monday, March 21, 2011

IMPORTANT INFORMATION: Warnings are only the first step to being safe in a tsunami....You need to know what areas are safe and what areas are at risk.

Know Your Zone -- how to find out if you are at risk of a tsunami - Lori Dengler, professor and chair of the HSU Geology Department/For the Times-Standard
...The California Geological Survey has taken the lead for mapping tsunami hazards in California.... The state maps are posted online at
www.quake.ca.gov/gmaps/tsunami/tsunami_maps.htm...
You can download fliers at
www.humboldt.edu/rctwg/
(select the download Tsunami Maps and Flyers on the right)...
...Find out if you are in a tsunami zone at
http://myhazards.calema.ca.gov/.
Just enter your address, and you can learn not only about tsunamis but earthquake and flood hazards as well.
read the rest

Sunday, April 04, 2010

ANOTHER ONE - Magnitude 7.8 quake shakes Indonesia's Sumatra

Magnitude 7.8 quake shakes Indonesia's Sumatra Tuesday the 6th
7.2 EarthQuake - BAJA CALIFORNIA, MEXICO

link

Magnitude 7.2 - BAJA CALIFORNIA, MEXICO

Magnitude-7.2 Quake in Baja Shakes SoCal
A magnitude-7.2 earthquake in Baja California could be felt in Los Angeles on Sunday afternoon. Several aftershocks or other quakes have been reported.
Initial reports said the quake was magnitude-6.9, but officials with the USGS mentioned that number might change.
The quake's epicenter was located about 108 miles east-southeast from Tijuana, about 38 miles southwest San Luis Río Colorado, Sonora, Mexico, and about 16 miles south-southwest Guadalupe Victoria, Baja California, Mexico.

The quake had a depth of 20.1 miles and struck at 3:40 p.m. The quake set high rise buildings in Riverside, Los Angeles and San Diego rocking back and forth. It also was felt in Palm Springs...

A magnitude-5.1 earthquake struck the Imperial area at 4:15 p.m. At 4:09 p.m., a magnitude-4.5 quake was reported about 21 miles south of Ocotillo.

One reporter in the Inland Empire clocked the duration at 45 seconds. An NBCLA.com visitor in Movjave said movement could be felt for one minute.

A Granada Hills resident said things started to settle after about one minute.

"But it seemed like forever," he added.

The quake was felt for about 40 seconds in Tijuana, Mexico, causing buildings to sway and knocking out power in parts of the city. The Associated Press reported that families celebrating Easter ran out of the homes, with children screaming and crying.
Earlier this weekend, a series of small-to-moderate quakes hit the geothermally-active area....

Baja California quake magnitude raised to 7.2

7.2 Quake Based Near Mexicali Shakes Up SoCal - Tremors Felt In Mexico All The Way To Santa Barbara
List of recent quakes

Friends report 19 earthquakes in the last hour and a half... (h/t: Dorian)

Thursday, February 04, 2010

Quake-Up Call


Quake-Up Call Willamette Week Online h/t: jason
There’s a massive earthquake in Portland’s future—and a government “prophet of doom” will tell you all about it.
In the reasonably near future, perhaps within our lifetimes and quite possibly as soon as tomorrow, an earthquake will strike Portland with roughly the same force felt this month in Port-au-Prince.

But while the Jan. 12 Haitian quake lasted less than 40 seconds, the shaking in Portland will continue for at least four minutes. Portland will feel a quake with a strength, duration and destruction never before experienced in the developed Western world.

Our cataclysm will begin 75 miles off the Oregon coastline. The ocean floor will split, sending shock waves racing under the water as fast as 17,000 mph. Those shock waves, felt first as a rumble, will slam into Portland in 30 seconds. The rattling will grow into a pulsing undulation that will repeatedly shove the ground up and down as much as 6 feet.

Landslides will ensue in the West Hills, sending mansions crashing on top of each other. Several of the 10 bridges across the Willamette River will collapse—the Steel Bridge, Sellwood Bridge and Marquam Bridge, most likely—and the rest will be impassible. Big Pink and other office towers will sway so violently their granite and glass façades will shear off and crash into the street, piling rubble up 4 feet deep. The Multnomah County Courthouse will tumble. Underground gas, power and water lines will be pulverized. The soil beneath the Portland International Airport will temporarily turn to soup.

About half an hour later, a 30-foot wall of water will crash into the Oregon coastline, with the tsunami flooding as high as 100 feet above sea level, sweeping in and out for hours.

This is not a pitch for the next Hollywood disaster movie. It is the scientific consensus on what will happen here sooner or later. And the latest data suggest it may in fact be sooner.

Earthquake 5.4 6.0 5.9


http://earthquake.usgs.gov/earthquakes/recenteqsus/Quakes/nc71348851.php
Magnitude - 5.4
Date-Time
Thursday, February 04, 2010 at 20:20:21 UTC
Thursday, February 04, 2010 at 12:20:21 PM at epicenter
Location
40.431°N, 124.929°W
Depth
11.2 km (7.0 miles)
Region
OFFSHORE NORTHERN CALIFORNIA

***
Magnitude 6.0 - regional moment magnitude (Mw)
Time Thursday, February 4, 2010 at 12:20:21 PM (PST)
Thursday, February 4, 2010 at 20:20:21 (UTC)
Distance from Petrolia, CA - 56 km (35 miles) WNW (282 degrees)
Ferndale, CA - 59 km (36 miles) WSW (254 degrees)
Fortuna, CA - 68 km (43 miles) WSW (256 degrees)
Eureka, CA - 76 km (47 miles) WSW (239 degrees)
Sacramento, CA - 363 km (225 miles) NW (306 degrees)


http://quake.usgs.gov/recenteqs/Quakes/nc71348851.htm
http://www.northcoastjournal.com/blogthing/2010/02/04/earthquake-1220-pm/
http://sfappeal.com/news/2010/02/another-humboldt-earthquake.php (image source)
http://humboldtherald.wordpress.com/2010/02/04/6-0-earthquake/
http://kunsoo1024.wordpress.com/2010/02/04/whoa-that-was-a-long-one/
Magnitude 6 rocks Humboldt coast

SOMETHING NEW - An automated call from the school letting all parents know that the kids and facilities were all of, and that they all practiced 'duck and cover' as they have done in countless drills prior.