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How long was the fault and how did scientists find this information out?
The fault that caused the 1906 San Francisco earthquake has an estimated length of about 296 miles (477 km). Scientists determined this information by studying the surface rupture, seismic waves, and geologic features left behind by the earthquake, combined with geological mapping and trenching techniques along the fault trace.
Where is the focus of an earthquake?
The focus (more correctly termed the hypocenter) of an earthquake is the point in the earth where the earthquake rupture or fault movement actually occurred. The point on the surface directly above the hypocenter is known as the epicenter.
What is fault movement that begins deep within the earth at a point called?
The fault movement that begins deep within the earth at a point is called the focus or hypocenter of an earthquake. This is the point where the energy is first released, leading to the rupture of the fault and the subsequent shaking of the ground.
What were the causes of loma prieta?
The Loma Prieta earthquake was caused by the rupture of the San Andreas Fault system, resulting from the tectonic forces along the fault line. The movement of the Pacific Plate against the North American Plate caused stress to build up and eventually release in the form of an earthquake.
This is the site deep inside the earth where fault movement begins.?
This site is known as the hypocenter or focus of an earthquake. It is the point underground where the fault rupture initiates and the seismic waves are generated and radiate outward. It is typically located beneath the Earth's surface where the stress along a fault exceeds the strength of the rocks, causing them to break and slip.
What is the location on a fault where rupture and movement begin?
it is the FAULT
What do you call splits in the earth's crust?
Rupture or fault.
What is the rupture and sudden movement of rocks along a fault?
Earthquake
What is a rupture of geological fault?
A rupture of a geological fault occurs when there is sudden movement along the fault line, causing the rocks on either side to break and slide relative to each other. This movement releases accumulated stress and can result in an earthquake. The size and impact of the rupture depend on factors like the length of the fault segment and the amount of slippage.
When did this particular fault last move and how can scientists tell that fault has not moved for many thousands of years?
Fault rupture is 14km long along the southern edge of the city
What is a high rupture capacity fuse?
This is a fuse that has the ability to interrupt a high fault current.
When did this particular fault last move and how can scientists tell that fault has not been moved for many thousands of year?
Fault rupture is 14km long along the southern edge of the city
Is the epicenter of an earthquake the point of rupture along the fault?
the epicentre is the point directly above the focus.
A fault is a break or rupture in the rocks on the earth's surface in California the San Andreas Fault is 600 miles long Why might it be dangerous to live on or near the San Andreas Fault?
it would be too dangerous to live there because the fault causes earthquakes.
How long was the fault and how did scientists find this information out?
The fault that caused the 1906 San Francisco earthquake has an estimated length of about 296 miles (477 km). Scientists determined this information by studying the surface rupture, seismic waves, and geologic features left behind by the earthquake, combined with geological mapping and trenching techniques along the fault trace.
What is the seismic scale?
Seismic moment (M0)is a measurement of the amount of energy released along a fault rupture surface when an earthquake occurs. It is used in the calculation of a value on the moment magnitude scale (MW).M0 = μADμ is the shear modulus of the rocks along the fault rupture zone (dyne/cm2)A is the area of the rupture along the fault (in cm2)D is the average displacement on A (in cm).Where the moment magnitude scale value is calculated using the following equation:MW = 2/3*log10M0-10.7
What were the natural causes of the 1989 san francisco earthquake?
Rupture along a 40 km section of the San Andreas fault.
