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Logo of the ANSS. The Advanced National Seismic System (ANSS) is a collaboration of the United States Geological Survey (USGS) and regional, state, and academic partners that collects and analyzes data on significant earthquakes to provide near real-time (generally within 10 to 30 minutes [1]) information to emergency responders and officials, the news media, and the public. [2]
The USGS ANSS (Advanced National Seismic System) Comprehensive Catalog (ComCat) is the authoritative and preferred source for near-realtime information about earthquakes and other seismic events (such as nuclear weapons tests) of magnitude 5.0 or greater anywhere in the world. ANSS is focused on providing accurate and timely information about ...
Therefore, on seismograms, each line measures thirty minutes. This is a more efficient way to read a seismogram. Secondly, there are the minute-marks. A minute mark looks like a hyphen "-" between each minute. Minute marks count minutes on seismograms. From left to right, each mark stands for a minute. Each seismic wave looks different.
Aftershock of the 7.5 earthquake nine minutes prior. - - 1 [5] Indonesia, West Java, 25 km (16 mi) northeast of Lembang: 4.5 10.0 V Sixty-nine homes destroyed and 416 structures damaged in the Sumedang area. [6] - - 3 [7] Indonesia, West Java offshore, 44 km (27 mi) southwest of Pelabuhanratu: 4.8 99.0 VI
Jones, E.S. et al. 2014, Seismicity of the Earth 1900–2012 Java and vicinity: USGS Open-File Report 2010–1083-N, 1 sheet, scale 1:5,000,000, Seismicity of the Earth 1900–2012 Java and vicinity Benz, H.M. et al. 2011, Seismicity of the Earth 1900–2010 New Guinea and vicinity: USGS Open-File Report 2010–1083-H, scale 1:8,000,000 .
UTC time: 2010-10-25 14:42:22: ISC event: 15264887: USGS-ANSSComCat: Local date: 25 October 2010 (): Local time: 21:42:22: Magnitude: 7.8 M w: Depth: 12.8 miles (20.6 km) Epicenter: 1] [2]: Fault: Sunda megathrust: Type: Thrust fault: Areas affected: Indonesia: Max. intensity: MMI V (Moderate) [1]: Casualties: 408 dead + 303 missing [3]: The 2010 Mentawai earthquake occurred with a moment ...
USGS researchers publish the results of their science in a variety of ways, including peer-reviewed scientific journals as well as in one of a variety of USGS Report Series [36] that include preliminary results, maps, data, and final results. A complete catalog of all USGS publications is available from the USGS Publications Warehouse. [37]
It had six degrees or categories, has been described as "merely an adaptation" of the then-standard Rossi–Forel scale of 10 degrees, and is now "more or less forgotten". [3] Mercalli's second scale, published in 1902, was also an adaptation of the Rossi–Forel scale, retaining the 10 degrees and expanding the descriptions of each degree. [4]