[Or rather, make that a 4.0 on the Richter, final answer. That was for the afternoon earthquake. This evening's aftershock at 8:16 PM was a 3.8.]
People in the West Bay could definitely feel this this one today, the one centered beneath UC Berkeley.
It felt like a succession of sharp bumps for a few seconds and then there was some generalized shaking – perhaps it all lasted about six seconds.
The Did You Feel It Map:
The initial estimate was a 4.2:
| Magnitude | 4.2 |
|---|---|
| Date-Time |
|
| Location | 37.864°N, 122.249°W |
| Depth | 9.8 km (6.1 miles) |
| Region | SAN FRANCISCO BAY AREA, CALIFORNIA |
| Distances |
|
| Location Uncertainty | horizontal +/- 0.2 km (0.1 miles); depth +/- 0.4 km (0.2 miles) |
| Parameters | Nph= 90, Dmin=2 km, Rmss=0.18 sec, Gp= 22°, M-type=local magnitude (ML), Version=3 |
| Source | |
| Event ID | nc71667366 |
Thusly.
Hold on kids, it’s about to earthquake!
Click to expand
Wouldn’t you and your kids like to ride the Quake Cottage?
Available for weddings, bar mitzvahs, etc, I’m sure.
And it’s probably cheaper than a bounce house…
The San Francisco Department of Emergency Management is up early today, concerned about a possible small tsunami hitting San Francisco due to the recent 8.9 earthquake near Sendai, Japan.
Per Capt. Richard Corriea of Richmond Station:
“Officers have closed the Great Highway to vehicle traffic between Balboa and Skyline Blvd. Please avoid the area.”
And Mayor Edwin Lee will be at our Emergency Operations Center bright and early this A.M. as well.
Deets below.
This went out at 6:17 AM today:
“FOR IMMEDIATE RELEASE
Friday, March 11, 2011
Contact: Department of Emergency Management
*** PRESS RELEASE ***
SAN FRANCISCO CONTINUES TO MONITOR TSUNAMI WARNING
Precautionary Closure of Beaches and Great Highway
San Francisco, CA – The City and County of San Francisco continues to monitor the Tsunami warning issued this morning and is assessing risks to California Coastal areas. As a precaution, the Police Department has closed the upper and lower Great Highway and the National Park Service has closed Ocean Beach, Baker Beach, China Beach, and Fort Funston.
This is in response to the 8.9 magnitude earthquake in Japan, which caused a tsunami warning to be issued for the US West Coast, the San Francisco Department of Emergency Management (DEM) has activated the City’s Emergency Operations Center. DEM is currently in contact with the California Emergency Management Agency.
The City has not ordered an evacuation. Residents are advised to monitor local media for information updates.”
UPDATE: And here’s his statement:
Mayor Edwin M. Lee today issued the following statement regarding the recent earthquake and tsunami in Japan:
“On behalf of the residents of the City and County of San Francisco, I extend our deepest condolences to the people of Japan and to the families and friends of those affected by the devastating earthquake and tsunami that struck there today.
Our thoughts and prayers are with those whose lives have been impacted by this tragedy. I have contacted the Counsel General of Japan in San Francisco with our expression of sympathy and our willingness to join any international assistance effort.
We will continue to monitor the tsunami warnings that have been issued for the California coastal regions and act accordingly. This is a stark reminder to our City that we must always be prepared for the next disaster to ensure our families are safe.”
Well, run for the hills, Ma Barker – it’s been reported that Danville, CA had an earthquake of magnitude 2.0 on the Richter (or, IRL, moment magnitude) scale this morning.
Now really, is this event worth reporting if nobody even felt it? I mean, don’t we have hundreds of tiny earthquakes going on all the time? So why inform readers about quakes of magnitude 2, or 1, or zero, or less than zero?
Now, what if The Great Danville Micro-Quake of Novembre 7th in the Year of Our Lord Twenty Hundred and Half a Score, well what if it had had about thirty times as much energy? Well, then it would be a 3.0 and people would have felt it and then it’d be worth reporting.
You know where you want to be the next time a Big One comes? The Skidmore, Owings & Merrill-designed state building in San Francisco’s Civic Center. It’s resting on 288 eight-foot hydraulic seismic dampers. Like this one:
Click to expand
Ergo, resolved: Earthquakes with Magnitudes of Less than 3.0 are Not Worth Reporting.
This must be a twin of the one we just felt on June 28th. Did You Feel It?
Mag= 3.5 3.2, MMI= IV
All the deets of Event nc71436076:
| Magnitude | 3.5 |
|---|---|
| Date-Time |
|
| Location | 37.665°N, 122.516°W |
| Depth | 6.7 km (4.2 miles) |
| Region | OFFSHORE NORTHERN CALIFORNIA |
| Distances |
|
| Location Uncertainty | horizontal +/- 0.2 km (0.1 miles); depth +/- 0.4 km (0.2 miles) |
| Parameters | Nph= 75, Dmin=5 km, Rmss=0.13 sec, Gp=104°, M-type=local magnitude (ML), Version=2 |
| Source | |
| Event ID | nc71436076 |
7:47 AM, June 28th – The bay area just got a few little rolls from an “adorable” quake that had an epicenter just three miles to the west of the San Francisco Zoo, under the Pacific on the San Andreas Fault.
The animals at the zoo are unnerved:
“I can hear the Peacocks at the @sfzoo flipping out over the little earthquake.”
Oh well. Here it is, from the USGS:
| Magnitude | 3.5 |
|---|---|
| Date-Time |
|
| Location | 37.742°N, 122.556°W |
| Depth | 8 km (5.0 miles) |
| Region | OFFSHORE NORTHERN CALIFORNIA |
| Distances |
|
| Location Uncertainty | horizontal +/- 0.2 km (0.1 miles); depth +/- 0.4 km (0.2 miles) |
| Parameters | Nph= 73, Dmin=9 km, Rmss=0.08 sec, Gp=101°, M-type=local magnitude (ML), Version=2 |
| Source | |
| Event ID | nc71416595 |
Saint Francis of Assisi was all, “Is that what Thouest calls an Earth-Tembler Temblor, Master Andreas? Really, t’was merely a trifling. Next time, Thouest should Bring It On.”
An artist’s depiction of Frank raising the roof in victory over Saint Andy this A.M.:
Still standing, baby!
Sure, it’s right next to the Masonic TJ’s and the parking is easy, but would you want to be inside this brown and white houseboat on stilts during an earthquake?
Click to expand:
Maybe not. But at least it looks better than this number from the east bay.
Oh well.
This is a test. Only a test.
Normally, you’d only hear these sirens on Tuesdays at noon. There’s no need for alarm.
Deets below.
CITYWIDE SIRENS TO SOUND AS PART OF EARTHQUAKE DRILL
What: The City’s Outdoor Public Warning System Sirens will be activated as part of the statewide Drop, Cover and Hold earthquake drill on October 15, 2009 at 10:15 am. The sirens will be sounded, followed by a voice message indicating that it is a test. This is the first time the City is utilizing the system citywide at a time other than the regular Tuesday noon weekly test.
San Francisco residents and visitors should not be alarmed by the fact that the sirens are sounding at a time other than the regular Tuesday test.
When: Thursday, October 15, 2009 at 10:15 am
Where: 92 locations citywide
Why: The City is participating in the Great California ShakeOut, the statewide earthquake drill. To date, more than 280,000 people in San Francisco have registered to participate in the drill, and more than 6.4 million have registered statewide. For more information, please go to
www.shakeout.org/sanfrancisco.
Can you hazard a guess as to why?
Here are all the deets:
THE BIG RUMBLE – SAN FRANCISCO
20th Anniversary of the Loma Prieta Earthquake
This year marks the 20th anniversary of the Loma Prieta earthquake. The Big Rumble commemorates this anniversary with a week-long series of special events designed to connect our communities with preparedness resources.
Join us in October for The Big Rumble, as we come together as a community to learn more about how we can be better prepared for all types of emergencies. Events will include entertainment, activities for kids, free giveaways, and valuable preparedness information.
Venues and Entertainment
Bayview| Joseph Lee Recreation Center | Oakdale Ave and 3rd St.
Sila: Kenyan Afro-Funk band led by Victor Sila
The Congress: Neo-jazz project led by producer/trumpeter Marcus Cohen
Breakdancing Performance by Acrosports All-City Team
Marina| West Side of the Marina Green| Between Scott ST. and Avilla
Gaucho: San Francisco based Gypsy Jazz Sextet.
Kally Price: Local Jazz and Blues vocalist
Devine’s Jug Band: San Francisco’s favorite Jug Band.
Sony Holland Duo: Bay Area Jazz vocalist
Mission| Parque Ninos Unidos| 23rd and Folsom.
My First Earthquake. San Francisco Electro-pop dance group
Locura Trio. San Francisco Based Flamenco rock group
Aceituno Arts Capoeria Exhibition. Capoeira Exhibition by student owned Martial Arts Studio
Family Style: Jazz and Funk Ensemble
Sunset | 20th Ave. and Irving St.
The Slayers Club: Local DJ collective
US Wing Chun: International Martial Arts Studio
West Sunset ReConnect Steel Pan Drummers and Dance Ensemble
