Friday, January 18, 2019

Bay Area Wakes to Earthquake for Second Straight Morning

Bay Area Wakes to Earthquake for Second Straight Morning

Bay Area Wakes to Earthquake for Second Straight Morning

On the twenty-fifth day of remembrance of the Northridge earthquake, the second earthquake in 2 days has woken up the Bay area, with the last seismal event a magnitude 3.5 centered within the Oakland-Berkeley Hills.

The latest earthquake struck at 6:11 a.m., with an epicenter less than a mile west of the western fringe of the Caldecott Tunnel — concerning 2 miles southeast of the UC Berkeley field and four miles northeast of the downtown city.

An earlier quake, a magnitude 3.4, hit each day earlier at 4:42 a.m.
The U.S. Geological Survey reported light shaking, or intensity 4 shaking, on the changed Mercalli Intensity Scale. Shaking of this sort usually is felt inside by many, and rattle dishes and windows and cause walls to create a cracking sound. It will feel like a heavy truck striking a building, and rock standing cars perceptibly.

The East Bay is threatened by the Hayward fault, that has been referred to as a “tectonic time bomb.” A landmark report by the USGS last year estimates that a minimum of 800 folks may be killed and eighteen,000 additional injured in a hypothetical magnitude seven earthquake on the Hayward fault centered below the city.

The Hayward fault is therefore dangerous as a result of it runs through a number of the foremost heavily inhabited elements of the Bay area, spanning the length of the East Bay from the San Pablo Bay through Berkeley, Oakland, Hayward, Fremont and into Milpitas.

Out of the region’s population of seven million, two million folks survive high of the fault, which proximity brings potential peril.

The fault has formed the history of the Bay area. old town halls in Hayward and Fremont are abandoned because they lie on the fault. At Memorial stadium at UC Berkeley, seating was recently broken up and restored in order that the facility’s western half might move six feet northwest from the other aspect. within the hypothetical earthquake situation, half of Memorial stadium moves two feet northwest throughout the main earthquake, another foot over the next twenty-four hours, and one more foot or so over the next few weeks or months.

The so-called HayWired situation envisions a scale of disaster not seen in trendy California history — 2,500 folks needing rescue from collapsed buildings and 22,000 being trapped in elevators. over 400,000 folks may be displaced from their homes, and a few East Bay residents could lose access to clean running water for as long as six months.

In some respects, the HayWired situation would be a minimum of ten times as unhealthy for the Bay area because of the magnitude 6.9 Loma Prieta earthquake, despite the similar magnitude. The 1989 earthquake is blamed for concerning 60 deaths and created $10 billion in harm; the HayWired situation envisions $82 billion in property damage and direct business losses, with fire following the earthquake potentially adding $30 billion more.

A Hayward fault earthquake might trigger important aftershocks on different faults for up to half a year after the main shock. within the HayWired situation, a large aftershock comes nearly six months once the main quake — a magnitude 6.4 close to Cupertino, the home of Apple’s headquarters, followed in close succession by a magnitude 6.2 quake near town, a key town in Silicon Valley, and a 5.4 back in the city.

The Hayward fault is one of California’s quickest moving, and on the average produces a major earthquake concerning once each 150 to 160 years, provide or take 70 or 80 years. The last major earthquake on the Hayward fault, a magnitude 6.8, had its 150th day of remembrance on October. 21.


In December, the city passed a law requiring a number of its most vulnerable buildings — so-called “soft-story” apartments with flimsy 1st stories, typically for garages — to be retrofitted. San Francisco, Berkeley, and Fremont have similar laws, however several different Bay area cities within the heart of California’s booming tech region, together with town and Burlingame, haven't acted. Hayward, a town that shares its name with the Hayward fault, also has not passed a compulsory retrofit law for soft-story buildings.

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