A5103095193- earthquake and tectonic studies
- Seismology and Earthquake Studies
- Archaeological and Geological Studies
- Geological and Geochemical Analysis
- Pleistocene-Era Hominins and Archaeology
- High-pressure geophysics and materials
- Ancient and Medieval Archaeology Studies
- Archaeology and ancient environmental studies
- Archaeological and Historical Studies
- Geological and Tectonic Studies in Latin America
- Seismic Waves and Analysis
- Earthquake Detection and Analysis
- Forensic Anthropology and Bioarchaeology Studies
- Paleopathology and ancient diseases
- Archaeology and Cultural Heritage
- Canadian Identity and History
- Geological and Geophysical Studies
- Botany and Geology in Latin America and Caribbean
- Geology and Paleoclimatology Research
- Maritime and Coastal Archaeology
- Historical and Archaeological Studies
- Seismic Imaging and Inversion Techniques
- Tropical and Extratropical Cyclones Research
- Climate variability and models
- Reservoir Engineering and Simulation Methods
New York University
2001-2024
Centre National de la Recherche Scientifique
2018-2022
Université Toulouse - Jean Jaurès
2015-2022
Travaux et Recherches Archéologiques sur les Cultures, les Espaces et les Sociétés
2015-2022
United States Geological Survey
1998-2020
Campbell Collaboration
2015
University Foundation
2015
Menlo School
2002
Montserrat Volcano Observatory
1997
Archéologies et Sciences de l’Antiquité
1993
This book takes an in-depth look at the nature of Early Upper Palaeolithic. It presents results new methods, techniques and approaches applied to investigation old problems concerning world Palaeolithic archaeology. Topics in art, technology subsistence are covered from important areas activity, including Eastern Europe, Central Western Europe Near East.
Varied seismicity has accompanied growth and collapse of the lava dome Soufriere Hills Volcano, Montserrat. Earthquakes have been classified as either volcano‐tectonic, long‐period or hybrid, daily variations in numbers events mapped changes style eruption. Repetitive hybrid earthquakes were common during first months growth. In July 1996 changed regular, short‐lived earthquake swarms became common. This change was probably caused by an increase magma flux. Earthquake preceded almost all...
A total of 9242 seismic events, recorded since the start eruption on Montserrat in July 1995, have been uniformly relocated with station travel‐time corrections. Early seismicity was generally diffuse under southern Montserrat, and mostly restricted to depths less than 7 km. However, a NE‐SW alignment epicentres beneath NE flank volcano emerged one swarm volcano‐tectonic earthquakes (VTs) later nests VT hypocentres developed at separated location, St. George's Hill. The overall spatial...
Abstract We have compiled a catalog of 51 destructive upper-crustal earthquakes in Central America since 1900. An event is included if it caused casualties or heavy damage Modified Mercalli (MM) intensity ≧ VII. All events larger than magnitude Ms 5.7 are found to be destructive. believe the complete for 6 along volcanic front. The includes estimates epicentral coordinates, depth, magnitude, and all presents MM VII contours most events. Data this place severe constraints on spatial,...
Using long-term data sets, the eruptive size, timing and style can typically be successfully forecast for dormant volcanoes using current monitoring knowledge of precursory patterns. The USAID-USGS Volcano Disaster Assistance Program (VDAP) utilizes seismic over multiple eruption cycles across volcano types to onset times, as well changes within ongoing eruptions. From millions event observations, we show that data, a proxy rate-dependent strain in magmatic system, combined with...
Most volcanoes worldwide are not monitored in real-time; for those that are, patterns of pre-eruptive earthquakes coupled with conceptual models magma ascent enable short-term forecasting eruption onset. Basic event locations, characterization background seismicity, and recognition changes earthquake types energy release most important to successful forecasting. During renewed activity at Sinabung volcano, Indonesia, this approach was used by the Center Volcanology Geological Hazards...
Eruptions of Sinabung volcano, Indonesia have been ongoing since 2013. Since that time, the character eruptions has changed, from phreatic to phreatomagmatic magmatic explosive eruptions, and production a lava dome collapsed subsequent thick flow slowly ceased be active, later, new dome. As eruption progressed, event trees were constructed forecast eruptive behavior six times, with windows ranged 2 weeks 1 year: November 7–10, December 12–14, 27, 2013; January 9–10, May 13, October 7, 2014....
The horizontal components of broadband seismographs are highly sensitive to tilt, suggesting that commonly deployed portable seismic sensors may record important tilt information associated with volcanic eruptions. We report on a episode coincides the first historical eruption Anatahan volcano May 10, 2003. was recorded by Strekheisen STS‐2 seismograph in an underground insulated chamber 7 km west active vent. An ultra‐long period signal dominant several hours E‐W component beginning at...
As magma moves toward the surface, it interacts with anything in its path: hydrothermal systems, cooling bodies from previous eruptions, and (or) surrounding “country rock.” Magma also undergoes significant changes physical properties as pressure temperature conditions change along path. These interactions lead to a range of geophysical geochemical phenomena. The goal volcano monitoring is detect correctly interpret such phenomena order provide early accurate warnings impending eruptions....
Swarms of small repetitive events with similar waveforms and magnitudes are often observed during the emplacement lava domes. Over 300,000 such were recorded in association dome at Soufriere Hills Volcano, Montserrat, from August 1995 through 1996. These originated < 2–3 km deep. They exhibited energy ranging over ˜ 1.5–4.5 Hz broader band than typical long‐period events. We term “hybrid” between volcano‐tectonic. The more impulsive prior to, compared after, periods inferred increased...
Abstract Forty historical documents have been found which describe a previously unknown very large earthquake on 22 July 1816. This event occurred along the strike-slip boundary between Caribbean and North American plates in Guatemala southern Mexico. Modified Mercalli intensities are estimated from these accounts, rough isoseismal map is constructed. The damage pattern indicates that causative fault was left-lateral Chixoy-Polochic for no damaging has reported. Damage of intensity VII or...
Distal volcano-tectonic (dVT) seismicity typically precedes eruption at long-dormant volcanoes by days to years. Precursory dVT may reflect magma-induced fluid-pressure pulses that intersect critically stressed faults. We explored this hypothesis using an open-source magmatic-hydrothermal code simulates multiphase fluid and heat transport over the temperature range 0 1200 °C. calculated changes caused a small (0.04 km3) intrusion effects of flow geometry (channelized vs. radial flow), magma...