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I was wondering if somebody could explain how a earthquake can register as with a depth of 1 metre. I use the quakes app on my phone and the depth is actually 0.1 km
First published online June 4, 2012,
doi: 10.1130/L192.1
Lithosphere August 2012 v. 4 no. 4 p. 286-330
Structural analysis of the Valles Marineris fault zone: Possible evidence for large-scale strike-slip faulting on Mars
1. An Yin*
- Author Affiliations
1.
Department of Earth and Space Sciences and Institute for Planets and Exoplanets (IPLEX), University of California, Los Angeles, California 90095-1567, USA, and Structural Geology Group, China University of Geosciences (Beijing), Beijing 100083, China
Abstract
Despite four decades of research, the origin of Valles Marineris on Mars, the longest trough system in the solar system, remains uncertain. Its formation mechanism has been variably related to rifting, strike-slip faulting, and subsurface mass removal. This study focuses on the structural geology of Ius and Coprates Chasmata in southern Valles Marineris using THEMIS (Thermal Emission Imaging System), Context Camera (CTX), and HiRISE (High Resolution Imaging Science Experiment) images. The main result of the work is that the troughs and their plateau margins have experienced left-slip transtensional deformation. Syntectonic soft-sediment deformation suggests the presence of surface water during the Late Amazonian left-slip tectonics in Valles Marineris. The total left-slip motion of the southern Valles Marineris fault zone is estimated to be 150–160 km, which may have been absorbed by east-west extension across Noctis Labyrinthus and Syria Planum in the west and across Capri and Eos Chasmata in the east. The discovery of a large-scale (>2000 km in length and >100 km in slip) and rather narrow (
F-E Region: Sea of Okhotsk
Time: 2012-08-14 02:59:37.6 UTC
Magnitude: 7.2
Epicenter: 145.16°E 49.80°N
Depth: 573 km
Status: A - automatic
Magnitude 7.3 (Preliminary magnitude — update expected within 15 minutes)
Date-Time
* Tuesday, August 14, 2012 at 02:59:38 UTC
* Tuesday, August 14, 2012 at 12:59:38 PM at epicenter
Location 49.679°N, 145.300°E
Depth 582.1 km (361.7 miles) set by location program
Region SEA OF OKHOTSK
Distances
* 168 km (105 miles) ENE (71°) from Poronaysk, Russia
* 357 km (222 miles) NNE (31°) from Yuzhno-Sakhalinsk, Russia
* 462 km (287 miles) SSE (159°) from Okha, Russia
* 1622 km (1008 miles) NNE (14°) from TOKYO, Japan
Location Uncertainty Error estimate not available
Parameters NST= 11, Nph=0, Dmin=0 km, Rmss=0 sec, Gp=140°,
M-type="moment" magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=B
Source
* NOAA Pacific Tsunami Warning Center
Event ID pt12227000
Originally posted by Olivine
Well here is the long-awaited Mag 7+
7.3 (Preliminary magnitude — update expected within 15 minutes)
Date-Time
Tuesday, August 14, 2012 at 02:59:38 UTC
Tuesday, August 14, 2012 at 12:59:38 PM at epicenter
Location
49.679°N, 145.300°E
Depth
582.1 km (361.7 miles) set by location program
Region
SEA OF OKHOTSK
Distances
168 km (105 miles) ENE (71°) from Poronaysk, Russia
357 km (222 miles) NNE (31°) from Yuzhno-Sakhalinsk, Russia
462 km (287 miles) SSE (159°) from Okha, Russia
1622 km (1008 miles) NNE (14°) from TOKYO, Japan
Location Uncertainty
Error estimate not available
Parameters
NST= 11, Nph=0, Dmin=0 km, Rmss=0 sec, Gp=140°,
M-type="moment" magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=B
Source
NOAA Pacific Tsunami Warning Center
Event ID
pt12227000
USGS
edit on 8/13/2012 by Olivine because: link
5.1 Northern California 2012-08-14 03:09:11 37.055°N 121.636°W 66.6
3.9 Monterey Bay, California 2012-08-14 03:09:04 36.677°N 121.906°W 5.0
5.1 9km NE of Gerber, California 2012-08-14 03:08:50 40.117°N 122.072°W 65.4
7.3 166km ENE of Poronaysk, Russia 2012-08-14 02:59:38 49.679°N 145.300°E 582.1
7.3 Sea of Okhotsk 2012-08-14 02:58:28 48.700°N 145.300°E