Blar i Norwegian Geotechnical Institute (NGI) Digital Archive på forfatter "Kværna, Tormod"
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A Benchmark Case Study for Seismic Event Relative Location
Gibbons, Steven John; Kværna, Tormod; Tiira, Timo; Kozlovskaya, Elena (Peer reviewed; Journal article, 2020)“Precision seismology” encompasses a set of methods which use differential measurements of time-delays to estimate the relative locations of earthquakes and explosions. Delay-times estimated from signal correlations often ... -
CTBT seismic monitoring using coherent and incoherent array processing
Kværna, Tormod; Gibbons, Steven John; Näsholm, Sven Peter (Peer reviewed; Journal article, 2021)The detection and location capability of the International Monitoring System for small seismic events in the continental and oceanic regions surrounding the Sea of Japan is determined mainly by three primary seismic arrays: ... -
Tracking aftershock sequences using empirical matched field processing
Kværna, Tormod; Harris, David B; Näsholm, Sven Peter; Köhler, Andreas; Gibbons, Steven John (Peer reviewed; Journal article, 2023)Extensive aftershock sequences present a significant problem to seismological data centres attempting to produce near real-time comprehensive seismic event bulletins. An elevated number of events to process and poorer ... -
Tracking aftershock sequences using empirical matched field processing
Kværna, Tormod; Harris, David B; Näsholm, Sven Peter; Köhler, Andreas; Gibbons, Steven John (Peer reviewed; Journal article, 2023)Extensive aftershock sequences present a significant problem to seismological data centres attempting to produce near real-time comprehensive seismic event bulletins. An elevated number of events to process and poorer ...