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A tectonic earthquake begins by an initial rupture at a point on the fault surface, a process known as nucleation. The scale of the nucleation zone is uncertain, with some evidence, such as the rupture dimensions of the smallest earthquakes, suggesting that it is smaller than 100 m while other evidence, such as a slow component revealed by low-frequency spectra of some earthquakes, suggest ...
A fault plane is the plane that represents the fracture surface of a fault. A fault trace or fault line is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. [3] [4] A fault zone is a cluster of parallel faults.
Deadliest earthquake in South Asia, epicentre centred on the Jhelum Fault Zone. 2004-02-14: Battagram, Khyber Pakhtunkhwa: 5.5 M w: VIII 24 63 2002-11-02: Battagram, Khyber Pakhtunkhwa: 5.4 M w 6.3 M w: VIII 41 168 Doublet 1997-02-27: Balochistan: 7.0 M w: VIII 57 1992-05-20: Kohat Division, North West Frontier: 6.0 M w: VII 36 100 Moderate [14 ...
It's a logarithmic scale, meaning each number is 10 times as strong as the one before it. So a 5.0 earthquake is ten times stronger than a 4.0. ... Longer faults result in stronger earthquakes.
Earthquakes are common on the West Coast, with multiple plate boundaries like the San Andreas fault making geologic activity more likely. They are rarer on the East Coast, but they do happen .
An earthquake is the shaking of the surface of Earth resulting from a sudden release of energy in the lithosphere that creates seismic waves.Earthquakes may also be referred to as quakes, tremors, or temblors.
Thrust fault: Active: 2008 Sichuan (M8.0) Lost River Fault: Idaho, United States: Normal: Active: 1983 Borah Peak (M6.9) Lusatian Fault: Germany: Thrust fault: Macquarie Fault Zone >400: South Pacific Ocean: Fault (geology)#Strike-slip faults: Active: 1989 Maquarie Isl. (8.2), 2008 Macquarie Island earthquake (M7.1) Mae Chan Fault: 120 ...
Rawat Fault line near Islamabad. The geology of Pakistan encompasses the varied landscapes that make up the land constituting modern-day Pakistan, which are a blend of its geological history, and its climate over the past few million years. The Geological Survey of Pakistan is the premier agency responsible for studying the country's geology. [1]