- References
The Arias Intensity (IA) is a measure of the strength of a ground motion.[1] It determines the intensity of shaking by measuring the acceleration of transient seismic waves. It has been found to be a fairly reliable parameter to describe earthquake shaking necessary to trigger landslides.[2] It was proposed by Chilean engineer Arturo Arias in 1970.
It is defined as the time-integral of the square of the ground acceleration:
(m/s)
where g is the acceleration due to gravity and Td is the duration of signal above threshold. Theoretically the integral should be infinite.[3]
The Arias Intensity could also alternatively be defined as the sum of all the squared acceleration values from seismic strong motion records.[2]
References
1. ^{{cite journal|title=New predictive equations for Arias intensity from crustal earthquakes in New Zea |journal=Journal of Seismology| volume =13| issue= 1|pages=31–52 |date= |bibcode=2009JSeis..13...31S |doi=10.1007/s10950-008-9114-2}}
2. ^1 {{cite web|url=http://www.itc.nl/ilwis/applications/application07.asp |title=7. Seismic landslide hazard zonation |publisher=Faculty of Geo-Information Science and Earth Observation of the University of Twente |date=2006-09-29 |accessdate=2010-12-12}}
3. ^{{cite web|url=http://www.geologie.ac.at/filestore/download/JB1471_193_A.pdf |archive-url=https://web.archive.org/web/20110531193712/http://www.geologie.ac.at/filestore/download/JB1471_193_A.pdf |dead-url=yes |archive-date=2011-05-31 |title=Earthquake-Triggered Landslides in Austria – Dobratsch Revisited |author=Wolfgang A. Lenhardt |publisher=Jahrbuch der Geologischen Bundesanstalt |date=2007 }}
{{Seismology-stub}}2. ^1 {{cite web|url=http://www.itc.nl/ilwis/applications/application07.asp |title=7. Seismic landslide hazard zonation |publisher=Faculty of Geo-Information Science and Earth Observation of the University of Twente |date=2006-09-29 |accessdate=2010-12-12}}
3. ^{{cite web|url=http://www.geologie.ac.at/filestore/download/JB1471_193_A.pdf |archive-url=https://web.archive.org/web/20110531193712/http://www.geologie.ac.at/filestore/download/JB1471_193_A.pdf |dead-url=yes |archive-date=2011-05-31 |title=Earthquake-Triggered Landslides in Austria – Dobratsch Revisited |author=Wolfgang A. Lenhardt |publisher=Jahrbuch der Geologischen Bundesanstalt |date=2007 }}
1 : Seismology
- Achtarak
- Achterbergh
- Achter Col
- Achter Col, New Netherland
- Achter de wolken schijnt de zon
- Achter de Wolken Schijnt de Zon
- Achterdijk (North Brabant)
- Achterdijk (South Holland)
- Achterhoek (Nijkerk)
- Achterhoek, Overijssel
- Achterhoek (Overijssel)
- Achterhoeks
- Achterhooks
- Achterhuis (disambiguation)
- Achter Kol
- Achter Kol, New Netherland
- Achtermannshohe
- Achtermannshöhe
- Achternbusch
- Achterneed railway station
- Achterneed station
- Achterveld, Gelderland
- Achterwasser
- Achthoven (disambiguation)
- Achthoven (South Holland)