Earthquake source observations

We investigated rupture geometry, size, and slip distribution of October 30, 2020, Samos (Sisam)–Kuşadası earthquake combining seismographs, GPS measurements, and SAR analysis. Right after the earthquake, we measured 13 additional campaignbased GPS sites to intensify the available GPS network consisting of 10 continuous stations. We combined all available seismographs to have the best possible accuracy for mainshock and aftershock hypocenter locations. We compiled all available seismic profiles and integrated them using high-resolution bathymetry to map seismically active faults.

11p tanmocphong 29-01-2022 13 1   Download

On October 30, 2020, a strong earthquake (Mw6.6–7.0) occurred offshore, just north of Samos Island, causing life losses, injuries and damages, especially on the Turkish side. The broader area is characterized by a complex geodynamic setting with both rich seismic history and numerous active faults of different direction and kinematics. The first aim of this study is to define the seismic source of the mainshock, based on seismological and geodetic data (GPS measurements and originally processed GNSS records), as well as our field observations on Samos Island few days after the mainshock.

22p tanmocphong 29-01-2022 14 0   Download

A submarine area close to the Turkish and Greek border between the cities of Samos-Greece and Seferihisar-Turkey has been shaked on October 30, 2020 by a Mw= 6.9 earthquake. In this study, the finite source mechanism of the Samos earthquake was investigated using geodetic methods and the coseismic behavior of the earthquake was modeled. The observed coseismic displacements at 62 sites were inverted for the fault geometry and the slips. The mainshock did not generate an on-land surface rupture. However, the uniform slip modeling shows a finite source of 43.

20p tanmocphong 29-01-2022 6 0   Download

This paper aims at highlighting the impacts of catastrophic Gorkha earthquake of April 25, 2015 on tourism sector of Nepal and is based on secondary data collected through literature narratives from published and unpublished sources. The 7.6 magnitude earthquake struck a large part of central Nepal and heavily affected the tourism business and livelihoods based on tourism. The overall economic loss due to the earthquake was equivalent to US$ 7 billion, and the disaster effect on tourism sector was estimated at 81241 million, 11.5 percent of total.

12p nguathienthan1 27-11-2019 14 0   Download

However, some scientists are working on earthquake precursors and forecasting research and this is a big challenge. Chapter in this book will be devoted to different aspects of the Earthquake Research and analysis, from theoretical advances for practical applications. The first two chapters for statistical analysis. About ten chapters in Part II focus on research precursors of earthquakes and forecasting. Some proposed new methods for early detection, as well as observations of earthquakes through the use of social sensors....

266p lulanphuong 24-03-2012 75 10   Download