Deep-focus earthquakesAt transition zone depths in subduction zones, deep-focus earthquakes (300–690km depth) are thought to be associated with faulting that arises from phase transformations. In order to test the viability of this mechanism experimentally, an investigation was conducted on fayalite ...
Residual sphere methods of imaging near-source structure are applied to earthquakes in the Mariana and other subduction zones of the Northwest Pacific. Bet... KC Creager,TH Jordan - jws 被引量: 622发表: 1984年 A new self-organizing mechanism for deep-focus earthquakes THE mechanism of deep-...
Deep-focus earthquakes that occur at 350–660 km are assumed to be caused by olivine → spinel phase transformation (PT). However, there are many existing puzzles: (a) What are the mechanisms for jump from geological 10−17 − 10−15 s−1to seismic 10 − 103...
The hypothesis has been advanced that major portions of the annual pole motion are caused by the seasonal transport of air masses. These pole motions in turn can act as trigger forces on earthquakes. This is tested by observations of northern hemisphere pressures, pole motion, and occurrence of...
Earthquakes are often recorded at depths as great as 650 kilometers or more. These deep events mark regions where plates of the earth's surface are consumed in the mantle. But the earthquakes themselves present a conundrum: the high pressures and temperatures at such depths should keep rock fro...
Earthquake signal detection and seismic phase picking are challenging tasks in the processing of noisy data and the monitoring of microearthquakes. Here we present a global deep-learning model for simultaneous earthquake detection and phase picking. Perf
and dynamic relationships which may multiply and qualify the multiple working of hypotheses now being used in the study of the origin and tectonic significance of deep-focus earthquakes, and to mention certain matters of current experience which may suggest how and why deep-focus earthquakes occur....
Deep-focus earthquakes in the region of the Lipari Islands are studied from the point of view of high-frequency S-wave attenuation. The results are interpr... M.,Caputo,and,... - 《Tectonophysics》 被引量: 149发表: 1972年 Comparison of Magnitude Estimates for New Zealand Earthquakes: Moment...
More than 70% of the earthquakes occur during four swarms where the earthquake rate exceeds 1000 earthquakes per day (Fig. 4e). These swarms occur in July 2020, August 2020, October 2020 and February–March 2021. The first three of these swarms are associated with the activation of N-S ...
High Pressure Lab-Quakes Used as Analogues to Help Unravel the Mechanics of Deep-Focus Earthquakes Geophysical Research AbstractsGasc, JulienFauconnier, JulienDaigre, ClemenceMoarefvand, ArefehDeldicque, DamienGardonio, BlandineBurnley, PamelaSchubnel, Alexandre...