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Alaska Tsunami Warning Center

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Journal Article
Published: 01 April 1980
Seismological Research Letters (1980) 51 (2): 21-25.
...John G. Sindorf; Wayne J. Jorgensen Abstract Mantle-wave magnitudes can be measured from a very long period recording system developed for the Alaska Tsunami Warning Center and they are useful in the prediction of Tsunamis. © 1980 by the Seismological Society of America 1980 ...
Journal Article
Published: 16 October 2019
Seismological Research Letters (2019)
..., and multiplane finite‐source models should be able to validate or rule out the various models mentioned earlier. The National Tsunami Warning Center (NTWC) issues tsunami alerts for the coasts of Canada and the continental United States ( Department of Commerce, National Oceanic & Atmospheric...
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Journal Article
Published: 01 November 2003
Seismological Research Letters (2003) 74 (6): 743-752.
... regional seismic network consists of nearly 400 station sites operated by AEIC, the Alaska Volcano Observatory (AVO), the Alaska Tsunami Warning Center (ATWC), and the Pacific Geoscience Center (PGC). More than 25 AEIC sites are equipped with broadband sensors, some of which have additional strong-motion...
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Journal Article
Published: 20 June 2017
Bulletin of the Seismological Society of America (2017) 107 (4): 1883-1890.
... 1‐Hz Global Positioning System (GPS) data from the 24 January 2016 M w 7.1 Iniskin earthquake, which ruptured 125 km under Cook Inlet in Alaska, to motivate the inclusion of GNSS‐derived S ‐wave measurements into the trigger algorithms of EEW systems in regions lacking dense early‐warning...
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Journal Article
Published: 01 May 2005
Seismological Research Letters (2005) 76 (3): 331-343.
... encouraged Pacific nations to form a warning system for the entire Pacific, with PTWC as its operational center. Tsunami damage in coastal Alaska from the 1964 earthquake, exacerbated by waves generated by coastal and underwater landslides, encouraged Alaska to establish an independent tsunami warning center...
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Journal Article
Published: 01 June 2005
Bulletin of the Seismological Society of America (2005) 95 (3): 779-799.
...Stuart A. Weinstein; Emile A. Okal Abstract We study a database of more than 119,000 measurements of the mantle magnitude M m introduced by Okal and Talandier (1989) , obtained since 1999 as part of the operational procedures at the Pacific Tsunami Warning Center. The performance of this method...
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Journal Article
Published: 11 April 2018
Seismological Research Letters (2018) 89 (3): 1040-1048.
... as simulated ground motion. We measure peak ground velocities (PGVs) from instavel records and utilize them in the operational ShakeMap setup of the Alaska Earthquake Center to demonstrate their utility (and shortcomings). The method is easy to implement and to apply to data from individual stations...
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Journal Article
Published: 16 December 2015
Seismological Research Letters (2016) 87 (1): 26-36.
.... National Tsunami Warning Center (NTWC) in Palmer, Alaska, provides service for Puerto Rico and the Virgin Islands. In 2010, the NWS established the Caribbean Tsunami Warning Program ( CTWP ) in Mayagüez, Puerto Rico. The CTWP supports an increased capability of the tsunami observational system...
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Journal Article
Published: 01 March 2014
Seismological Research Letters (2014) 85 (2): 245-251.
..., the National Tsunami Warning Center, the Alaska Volcano Observatory, and the National Earthquake Information Center provide integrated monitoring of the different facets of Alaska earthquakes. Some of this evolution is the natural course of advancement. It cannot be overstated, however, that the career efforts...
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Journal Article
Published: 01 August 1989
Bulletin of the Seismological Society of America (1989) 79 (4): 1177-1193.
... computation of an estimate of the high-seas amplitude of a range of expectable tsunami heights. The latter, combined with complementary data from T -wave duration and historical references, have been integrated into an automated procedure of tsunami warning by the Centre Polynésien de Prévention des Tsunamis...
Journal Article
Published: 21 August 2019
Seismological Research Letters (2019) 90 (5): 1950-1970.
... are Alaska Seismic Network (AK), Alaska Volcano Observatory (AVO) seismic network (AV), and the National Tsunami Warning Center Alaska Seismic Network (AT). There are also isolated stations in mainland Alaska that are part of global (II.KDAK, IU.COLA) and national networks (US.EGAK, US.WRAK). Alaska...
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Journal Article
Published: 01 June 2010
Bulletin of the Seismological Society of America (2010) 100 (3): 1174-1183.
... the University of Alaska Fairbanks ( UAF ) and the newly established Alaska Tsunami Warning Center ( ATWC ), then part of the U.S. Coast and Geodetic Survey and now part of the National Oceanic and Atmospheric Administration. By 1967 a sparse telemetered network was established in central and south-central...
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Journal Article
Published: 14 February 2018
Seismological Research Letters (2018) 89 (2A): 467-474.
... to a central headquarters in Santiago where they are processed, analyzed, distributed, and archived. Data are open and available in real time from the IRIS‐Data Management Center (DMC). Currently, the software packages EarlyBird (developed by the West Coast/Alaska Tsunami Warning Center), SeisComP (developed...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP456.2
EISBN: 9781786203373
... countries. National systems for early warning were established in Nicaragua and El Salvador, while the other four countries rely on rapid information from the Pacific Tsunami Warning Center. Mitigation measures and information campaigns are presently conducted on a national basis in all countries...
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Journal Article
Published: 23 October 2019
Seismological Research Letters (2019)
... in 2018 (Fig.  2 ). Figure 1. Alaska seismic network. Different symbols indicate station operators: red triangles, Alaska Earthquake Center (AEC); inverted green triangles, Alaska Volcano Observatory (AVO); blue circles, new USArray sites; yellow squares, National Tsunami Warning Center (NTWC...
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Journal Article
Published: 01 December 2004
Bulletin of the Seismological Society of America (2004) 94 (6B): S156-S174.
... ), the Alaska Volcano Observatory, and the West Coast and Alaska Tsunami Warning Center. Although most of the sites are equipped with the analog, short-period vertical seismometers, in the past 5 years aeic has upgraded some of the existing sites with digital broadband sensors and installed new broadband...
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Journal Article
Published: 03 April 2018
Bulletin of the Seismological Society of America (2018) 108 (3B): 1736-1745.
...–16 December . Whitmore P. Benz H. Bolton M. Crawford G. Dengler L. Fryer G. Goltz J. Hansen R. Kryzanowski K. , and Malone S. , et al. 2008 . NOAA/West coast and Alaska tsunami warning center Pacific Ocean response criteria , Sci. Tsunami Hazards 27...
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Journal Article
Published: 03 October 2018
Seismological Research Letters (2018) 89 (6): 2322-2336.
... to the system and presents a target for streamlining. One approach to reconciling positions merges multiple position streams using a Kalman filter, producing a potentially more accurate consensus stream for each station. Under testing for tsunami warning applications ( Stough and Green, 2016 ), the merging...
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Journal Article
Published: 06 November 2019
Seismological Research Letters (2019)
... triangles) seismic stations. Cross sections shown in Figure  5 are delineated by black solid lines (N1–N2 and S1–S2). AEC, Alaska Earthquake Center; NTWC, National Tsunami Warning Center; USGS, U.S. Geological Survey. Table 1 1D Velocity Model Used for Alaska Earthquake Center (AEC) Catalog...
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Journal Article
Published: 01 June 2008
Bulletin of the Seismological Society of America (2008) 98 (3): 1559-1571.
... ) successfully recorded tsunami signals as well as seismic signals. We have collected and downloaded the tide records from more than 110 stations of JMA , Japan Coast Guard ( JCG ), Geographical Survey Institute ( GSI ), Sakhalin Tsunami Warning Center ( STWC ), West Coast and Alaska Tsunami Warning Center...
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