Shallow seismicity, triggered seismicity, and ambient noise tomography at the long-dormant Uturuncu Volcano, Bolivia

@article{Jay2011ShallowST,
  title={Shallow seismicity, triggered seismicity, and ambient noise tomography at the long-dormant Uturuncu Volcano, Bolivia},
  author={Jennifer Ayla Jay and Matthew E. Pritchard and Michael E. West and Douglas H. Christensen and Matthew M. Haney and Estela Ramos Minaya and Mayel Sunagua and Stephen R. McNutt and Mario Zabala},
  journal={Bulletin of Volcanology},
  year={2011},
  volume={74},
  pages={817-837}
}
Using a network of 15 seismometers around the inflating Uturuncu Volcano from April 2009 to 2010, we find an average rate of about three local volcano-tectonic earthquakes per day, and swarms of 5–60 events a few times per month with local magnitudes ranging from −1.2 to 3.7. The earthquake depths are near sea level, more than 10 km above the geodetically inferred inflation source and the Altiplano Puna Magma Body. The Mw 8.8 Maule earthquake on 27 February 2010 triggered hundreds of… 
Dynamic triggering: The effects of remote earthquakes on volcanoes, hydrothermal systems and tectonics
Dynamic stresses induced by seismic waves from large earthquakes can trigger a variety of geologic phenomena. This thesis focuses on observational evidence of dynamically triggered seismic activity
Reconnaissance earthquake studies at nine volcanic areas of the central Andes with coincident satellite thermal and InSAR observations
Abstract We record non-eruptive background seismicity at eight potentially active volcanoes and one geothermal area in Chile and Bolivia for the first time in order to set a baseline for future
Seismic activity of the Nevados de Chillán volcanic complex after the 2010 Mw8.8 Maule, Chile, earthquake
Abstract Couplings between large magnitude subduction zone earthquakes and the subsequent response of their respective volcanic arcs are generally accepted, but the mechanisms driving this coupling
Crustal anisotropy and state of stress at Uturuncu Volcano, Bolivia, from shear-wave splitting measurements and magnitude–frequency distributions in seismicity
Abstract The physical signatures of unrest in large silicic magma systems are commonly observed in geophysical surveys, yet the interactions between magmatic processes and crustal stresses are often
Triggered seismicity in the Andean arc region via static stress variation by the M W = 8.8, February 27, 2010, Maule earthquake
Abstract We localized crustal earthquakes in the Andean arc, between 35°S and 36°S, from December 2009 to May 2010. This research shows a seismicity increase, in a narrow longitudinal area, of more
Andean earthquakes triggered by the 2010 Maule, Chile (Mw 8.8) earthquake: Comparisons of geodetic, seismic and geologic constraints
Abstract The Maule, Chile, (Mw 8.8) earthquake on 27 February 2010 triggered deformation events over a broad area, allowing investigation of stress redistribution within the upper crust following a
Depths and focal mechanisms of crustal earthquakes in the central Andes determined from teleseismic waveform analysis and InSAR
[1] We investigate the depths of crustal earthquakes ( Mw ≳ 5.5) earthquakes from the Global CMT catalog and previous work spanning 1944–2007. For 38 well-recorded events, we use teleseismic P and SH
Intra‐Arc Crustal Seismicity: Seismotectonic Implications for the Southern Andes Volcanic Zone, Chile
We examine the intra‐arc crustal seismicity of the Southern Andes Volcanic Zone (SVZ). Our aim is to resolve inter‐seismic deformation in an active magmatic arc dominated by both margin‐parallel
Ambient noise tomography in the Naruko/Onikobe volcanic area, NE Japan: implications for geofluids and seismic activity
To understand the earthquake generation in volcanic areas, it is important to investigate the presence of geofluids in the uppermost crust. We applied ambient noise tomography to the Naruko/Onikobe
Magmatic or Not Magmatic? The 2015–2016 Seismic Swarm at the Long-Dormant Jailolo Volcano, West Halmahera, Indonesia
Seismic swarms close to volcanoes often signal the onset of unrest. Establishing whether magma is the culprit and the unrest can be flagged as magmatic may be challenging. Here we analyze the
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 87 REFERENCES
Remotely Triggered Seismicity on the United States West Coast following the Mw 7.9 Denali Fault Earthquake
The Mw 7.9 Denali fault earthquake in central Alaska of 3 November 2002 triggered earthquakes across western North America at epicentral distances of up to at least 3660 km. We describe the spatial
Characteristics of the October 2005 Microearthquake Swarm and Reactivation of Similar Event Seismic Swarms over Decadal Time Periods near Socorro, New Mexico
Seismicity in the Rio Grande rift in central New Mexico, southwestern United States, has been dominated by microearthquakes occurring above the midcrustal Socorro magma body (SMB) for at least the
Seismotectonics and stress field of the Yellowstone volcanic plateau from earthquake first‐motions and other indicators
[1] We have found spatial variations in seismic stress indicators at the Yellowstone volcanic field, Wyoming, by examining source mechanisms of 25 years of network-recorded earthquakes, 1973–1998.
Remotely Triggered Seismicity in the Yellowstone National Park Region by the 2002 Mw 7.9 Denali Fault Earthquake, Alaska
Coincident with the arrival of low-frequency, large-amplitude surface waves of the Mw 7.9 Denali fault earthquake (DFE), an abrupt increase in seismicity was observed in the Yellowstone National Park
The fluid-driven tectonic swarm of Aysen Fjord, Chile (2007) associated with two earthquakes (Mw=6.1 and Mw=6.2) within the Liquiñe-Ofqui Fault Zone
Abstract A seismic swarm of more than 7200 earthquakes occurred in Aysen Fjord, southern Chile, from January to June 2007. It started suddenly on 23 January 2007 with an earthquake of magnitude
Earthquake swarms in continental rifts — A comparison of selected cases in America, Africa and Europe
Abstract The occurrence of earthquake swarms is typically related to magmatic activity in volcanoes, yet swarms are also common in other intracontinental regions such as continental rifts. We present
Seismicity Remotely Triggered by the Magnitude 7.3 Landers, California, Earthquake
TLDR
The most promising explanations involve nonlinear interactions between large dynamic strains accompanying seismic waves from the mainshock and crustal fluids (perhaps including crustal magma).
Periodically Triggered Seismicity at Mount Wrangell, Alaska, After the Sumatra Earthquake
TLDR
As surface waves from the 26 December 2004 earthquake in Sumatra swept across Alaska, they triggered an 11-minute swarm of 14 local earthquakes near Mount Wrangell, almost 11,000 kilometers away, implying that local events were triggered by simple shear failure on normal faults.
Rheologic and structural controls on the deformation of Okmok volcano, Alaska: FEMs, InSAR, and ambient noise tomography
Received 23 January 2009; revised 5 August 2009; accepted 13 October 2009; published 27 February 2010. [1] Interferometric synthetic aperture radar (InSAR) data indicate that the caldera of Okmok
Relocation and characterization of the August 2009 microearthquake swarm above the Socorro magma body in the central Rio Grande Rift
[1] Earthquake swarms, often attributed to magma or fluid movement in the uppermost crust, have differing statistics depending on tectonic setting, with volcanic swarms producing b-values of up to
...
1
2
3
4
5
...