Anomalies of Seismic Activity and Transient Crustal Deformations Preceding the 2005 M 7.0 Earthquake West of Fukuoka

2010 ◽  
pp. 261-273
Author(s):  
Yosihiko Ogata
Keyword(s):  
Seismic Activity

VARIATIONS OF SEISMIC ACTIVITY IN DAGESTAN AS A RESULT OF TECTONIC AND TECHNOGENIC MANIFESTATIONS

2020 ◽  
Vol 64 (1) ◽  
pp. 52-61
Author(s):  
I.A. Aliev ◽  
◽  
A.G. Magomedov ◽  
Keyword(s):  
Seismic Activity

THE MANIFESTATION OF THE SEISMIC ACTIVITY VARIATIONS IN GEOPHYSICAL PARAMETERS AT THE OBSERVATION POINTS OF DAGESTAN AT THE BEGINNING OF 2019

2019 ◽  
Vol 77 (2) ◽  
pp. 95-100
Author(s):  
I. A. Aliev ◽  
◽  
A. G. Magomedov ◽  
M. S. Alibekov ◽  
◽  
...  
Keyword(s):  
Seismic Activity

Shale, Quakes, and High Stakes: Regulating Fracking-Induced Seismicity in Oklahoma, USA and Lancashire, UK

2019 ◽  
Vol 3 (1) ◽  
pp. 1-14
Author(s):  
Miriam R. Aczel ◽  
Karen E. Makuch
Keyword(s):  
United States ◽  
Hydraulic Fracturing ◽  
Shale Gas ◽  
Seismic Activity ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
High Volume ◽  
The United States ◽  
Horizontal Drilling ◽  
Induced Seismic Activity

High-volume hydraulic fracturing combined with horizontal drilling has “revolutionized” the United States’ oil and gas industry by allowing extraction of previously inaccessible oil and gas trapped in shale rock [1]. Although the United States has extracted shale gas in different states for several decades, the United Kingdom is in the early stages of developing its domestic shale gas resources, in the hopes of replicating the United States’ commercial success with the technologies [2, 3]. However, the extraction of shale gas using hydraulic fracturing and horizontal drilling poses potential risks to the environment and natural resources, human health, and communities and local livelihoods. Risks include contamination of water resources, air pollution, and induced seismic activity near shale gas operation sites. This paper examines the regulation of potential induced seismic activity in Oklahoma, USA, and Lancashire, UK, and concludes with recommendations for strengthening these protections.

Seismic activity in the Hanford region, Washington, March 23, 1969, to June 30, 1971

1972 ◽  
Author(s):  
Andrew M. Pitt
Keyword(s):  
Seismic Activity

Summary of seismic activity and its relation to geology and mining in the Sunnyside mining district, Carbon and Emery Counties, Utah, during 1967-1970

1973 ◽  
Author(s):  
C. Richard Dunrud ◽  
Frank W. Osterwald ◽  
Jerome Hernandez
Keyword(s):  
Seismic Activity ◽  
Mining District

The genesis of seismic activity on faults in Central Asia in real time and its variations

2011 ◽  
Vol 5 (1) ◽  
pp. 60-72 ◽  
Author(s):  
S. I. Sherman ◽  
E. A. Gorbunova
Keyword(s):  
Central Asia ◽  
Real Time ◽  
Seismic Activity

scholarly journals Morphotectonic Analysis along the Northern Margin of Samos Island, Related to the Seismic Activity of October 2020, Aegean Sea, Greece

Geosciences ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 102
Author(s):  
Paraskevi Nomikou ◽  
Dimitris Evangelidis ◽  
Dimitrios Papanikolaou ◽  
Danai Lampridou ◽  
Dimitris Litsas ◽  
...  
Keyword(s):  
Fault Zone ◽  
Seismic Activity ◽  
Volcanic Rocks ◽  
Active Tectonics ◽  
Normal Fault ◽  
Aegean Sea ◽  
Northern Margin ◽  
The North ◽  
Eastern Aegean ◽  
Half Graben

On 30 October 2020, a strong earthquake of magnitude 7.0 occurred north of Samos Island at the Eastern Aegean Sea, whose earthquake mechanism corresponds to an E-W normal fault dipping to the north. During the aftershock period in December 2020, a hydrographic survey off the northern coastal margin of Samos Island was conducted onboard R/V NAFTILOS. The result was a detailed bathymetric map with 15 m grid interval and 50 m isobaths and a morphological slope map. The morphotectonic analysis showed the E-W fault zone running along the coastal zone with 30–50° of slope, forming a half-graben structure. Numerous landslides and canyons trending N-S, transversal to the main direction of the Samos coastline, are observed between 600 and 100 m water depth. The ENE-WSW oriented western Samos coastline forms the SE margin of the neighboring deeper Ikaria Basin. A hummocky relief was detected at the eastern margin of Samos Basin probably representing volcanic rocks. The active tectonics characterized by N-S extension is very different from the Neogene tectonics of Samos Island characterized by NE-SW compression. The mainshock and most of the aftershocks of the October 2020 seismic activity occur on the prolongation of the north dipping E-W fault zone at about 12 km depth.

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