Where was the epicenter of the 1989 California earthquake?
Where was the epicenter of the 1989 California earthquake?
Mt. Loma Prieta
The epicenter was on the San Andreas fault roughly 56 miles south of San Francisco and 10 miles northeast of Santa Cruz, near Mt. Loma Prieta in the Santa Cruz Mountains.
What was the epicenter of the Loma Prieta earthquake?
The quake’s epicenter was near Loma Prieta Peak in the Santa Cruz Mountains. The magnitude 6.9 quake was the most powerful the state had experienced in several years. The Loma Prieta earthquake was triggered by the mighty San Andreas Fault, where the massive Pacific plate slips northwestward.
Where was the epicenter of that earthquake and how far from San Francisco was it?
Origin Time and Epicenter The great earthquake broke loose some 20 to 25 seconds later, with an epicenter in the Pacific Ocean just 2 miles west of San Francisco.
Where is Loma Prieta located?
Santa Cruz Mountains
Loma Prieta (from Spanish loma -hill, prieta -dark) is 3,790 feet (1,160 m) high and is the highest peak in the Santa Cruz Mountains in Northern California. Santa Clara County, California, U.S.
Where is the Hayward fault line?
San Francisco Bay
The Hayward Fault Zone is a right-lateral strike-slip geologic fault zone capable of generating destructive earthquakes. This fault is about 74 mi (119 km) long, situated mainly along the western base of the hills on the east side of San Francisco Bay.
Where is the epicenter of the San Andreas Fault?
The epicenter is on the northeast side of the Salton Sea in Imperial County, though strong shaking will be produced all along the fault as it ruptures through the Coachella Valley, into San Bernardino, across the Cajon Pass and further to the northwest until ending near Lake Hughes west of Lancaster.
Why is it called Loma Prieta earthquake?
The disaster is known as both as the San Francisco-Oakland earthquake and the Loma Prieta earthquake because it was centered near Loma Prieta Peak in the Santa Cruz Mountains.
What part of the Bay Bridge collapsed in 1989?
upper deck
The San Francisco–Oakland Bay Bridge suffered severe damage, as a 76-by-50-foot (23 m × 15 m) section of the upper deck on the eastern cantilever side fell onto the deck below.
Is the Hayward Fault overdue?
“We know that the last major earthquake on the Hayward Fault occurred in 1868 — 153 years ago. We also know that, on average, dating back to the year 1134, the fault produces a major earthquake roughly every 150 years. So, yes, we’re overdue.”