Preprint Technical Note Version 1 Preserved in Portico This version is not peer-reviewed

Analysis of Ocean Bottom Pressure Anomalies and Seismic Activities in MedRidge Zone

Version 1 : Received: 21 January 2021 / Approved: 22 January 2021 / Online: 22 January 2021 (12:15:52 CET)

How to cite: Kutoglu, S.H.; Becek, K. Analysis of Ocean Bottom Pressure Anomalies and Seismic Activities in MedRidge Zone. Preprints 2021, 2021010444 (doi: 10.20944/preprints202101.0444.v1). Kutoglu, S.H.; Becek, K. Analysis of Ocean Bottom Pressure Anomalies and Seismic Activities in MedRidge Zone. Preprints 2021, 2021010444 (doi: 10.20944/preprints202101.0444.v1).

Abstract

Mediterranean Ridge accretionary complex (MAC) is one of the most critical subduction zones in the world. It is known that the region exhibits a continuous mass change (horizontal/vertical movements). This process is associated with the devastating and tragic earthquakes shaking the MAC for centuries. Here, we investigate the ocean bottom pressure (OBP) anomalies in the MAC derived from the Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow On (GRACE-FO) satellite missions. The OBP time series for the MAC comprises a decreasing trend in addition to 1-, 1.53-, 2.36-, 3.67-, and 9.17-year periodic components partially explained by the atmosphere, oceans, and hydrosphere (AOH) processes, and Earth's pole movement. We noticed that the OBP anomalies appear to link to a rising trend and periods in earthquakes' power time series. This finding sheds new light on the mechanisms controlling the most destructive natural hazard.

Subject Areas

GRACE; Ocean Bottom Pressure; Earthquakes; Mediterranean Ridge accretionary complex.

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