TY - JOUR
T1 - Deep structure of arc volcanoes as inferred from seismic observations
AU - Hasegawa, A.
AU - Yamamoto, A.
AU - Zhao, D.
AU - Hori, S.
AU - Horiuchi, S.
PY - 1992
Y1 - 1992
N2 - Tomographic inversions for P-wave velocity clearly delineate low-velocity zones, which are inclined to the west and continuously distributed from the uppermost mantle to the upper crust beneath active volcanoes. Exceptionally deep (22-40km) microearthquakes are found at 10 locations around the low-velocity zones beneath active volcanoes. All these events have extremely low predominant frequencies, suggesting a closer relation to the magmatic activity in this depth range. At shallower depths (8-15km) distinct reflectors of S-waves from shallow events are found at five locations in or around the low-velocity zones. -from Authors
AB - Tomographic inversions for P-wave velocity clearly delineate low-velocity zones, which are inclined to the west and continuously distributed from the uppermost mantle to the upper crust beneath active volcanoes. Exceptionally deep (22-40km) microearthquakes are found at 10 locations around the low-velocity zones beneath active volcanoes. All these events have extremely low predominant frequencies, suggesting a closer relation to the magmatic activity in this depth range. At shallower depths (8-15km) distinct reflectors of S-waves from shallow events are found at five locations in or around the low-velocity zones. -from Authors
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M3 - Article
AN - SCOPUS:0027094542
SN - 1364-503X
VL - 342
SP - 167
EP - 178
JO - Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
JF - Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
IS - 1663
ER -