ISSN:
1573-1626
Source:
Springer Online Journal Archives 1860-2000
Topics:
Architecture, Civil Engineering, Surveying
,
Geosciences
,
Physics
Description / Table of Contents:
Summary Body wave magnitudes of 384 and 440 teleseismic events in the distance range 9–100° are determined using short-period P-wave data obtained from the vertical component seismograms of Khonsa (Tirap district, Arunachal Pradesh) and Yaongyimsen (Mokukchung district, Nagaland) seismic stations. These magnitudes are compared with the corresponding body wave magnitudes reported by the National Earthquake Information Service of the United States Geological Survey. Average residuals for Khonsa and Yaongyimsen stations are found to be +0.09 and +0.48, respectively. It is observed that the average residuals (Δ7) for both the stations decrease with respect to epicentral distance (Δ), focal depth (h) and body wave magnitude (mb). For the Khonsa station, the respective linear relations are: Δ=0.12−1×10−5 Δ, δM=0.22−7××10−5 h, ΔM=1.96−0.356mb and similarly, for the Yaongyimsen station the relations are ΔM=0.59−2×10−5 Δ, ΔM=0.54−19×10−5 h, ΔM=2.56−0.391mb. The nature of the variation of residuals is found to be nearly similar for both the stations.
Notes:
Резюме Мaгнumу¶rt;ы сеŭсмuческuх волн оm 384 u 440 mелесеŭсмuческuх явленuŭ нa рaссmоянuu 9° – 100° былu оnре¶rt;елены nо верmuкaльным сосmaвляющuм сеŭсмогрaмм сmaнцuŭ Кhоnгa (рaŭон Тirap, Arunachal Pradesh) u Yaongyimsen (рaŭон Mokukchung, Nagaland). Полученные мaгнumу¶rt;ы срaвнuвaюmся с сооmвеmсmвующuмu мaгнumу¶rt;aмu, nолученнымu ценmром National Earthquake Information Service of United States Geological Survey. Сре¶rt;нuе рaзносmu ¶rt;ля сmaнцuŭ Khonsa u Yaongyimsen рaвны +0,09 u +0,48 сооmвеmсmвенно. Окaзaлось, сре¶rt;нuе невязкu (ΔM) ¶rt;ля обеuх сmaнцuŭ уменьщaюmся с рaссmоянuем оm эnuценmрa (Δ),глубuноŭ очaгa (h) u мaгнumу¶rt;оŭ (mb). Для сmaнцuu Khonsa сооmвеmсmвующuе лuнеŭные зaвu⇒uмосmu сле¶rt;ующuе: ΔM=0.12−1×10−5 Δ, ΔM=0,22−7×10−5 h, ΔM=1,96−0,356mb; ¶rt;ля сmaнцuu Yaongyimsen сооmвеmсmвенно ΔM=0,56−2×10−5 Δ, ΔM=0,54−19×10−5 h, ΔM=2,56−0,391mb. Оmмечено, чmо nрuро¶rt;a uзмененuŭ небязок ¶rt;ля обеuх сmaнцuŭ nрuмерно о¶rt;uнaковa.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01638437
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