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2011 UNAVCO Highlights
  Title   Date
Broadband Geodetic and Seismological Response to the Mineral, VA Earthquake Broadband Geodetic and Seismological Response to the Mineral, VA Earthquake In October 2011, engineers from the Plate Boundary Observatory began work on an NSF-funded RAPID project related to the study of the post-rupture crustal relaxation due to the M5.8 earthquake that struck near Mineral, VA on August 23, 2011. The project consisted of the reconnaissance, permitting, construction, and data communications for two permanent GPS stations near Louisa, Virginia, close to the epicenter of the earthquake. UNAVCO field engineers assisted the Principal Investigator with all the components of the fieldwork. The project was completed in November 2011.
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2011-12-12
High Rate Strain and Tilt Data Products High Rate Strain and Tilt Data Products Beginning October 2011, UNAVCO will start releasing high-rate (1-sps) processed borehole strainmeter data for geophysical events of special interest, e.g., earthquakes, tsunamis, volcanic events or in response to community requests. The high rate strain data set will include areal and shear strain, earth tide plus ocean load time-series, barometric pressure corrections, plus pore pressure and tiltmeter data if they are collected at the site. These new data products will be available from the UNAVCO PBO web page under the Geophysical Event section. The first high rate data sets available are for the M9, March 11, 2011, Tohoku Earthquake and the M6.4, 2011 September 9, Vancouver Island Earthquake.
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2011-11-14
New PBO GPS Velocity Field New PBO GPS Velocity Field UNAVCO has released a new realization of the Plate Boundary Observatory (PBO) network GPS velocity field, reflecting data acquired through May 2011.
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2011-08-30
PBO Strainmeters Record the 2011 ETS Cascadia Episodic Tremor and Slip Event PBO Strainmeters Record the 2011 ETS Cascadia Episodic Tremor and Slip Event A few months earlier than anticipated, the 2011 Cascadia Episodic Tremor and Slip event may be underway. Based on the start time of last year's event, this year's tremor was expected to begin late October 2011. An increase in tremor south of Puget Sound around August 7th, however, and its propagation northeastwards under the Olympic Peninsula over the past 10 days has caused speculation that this is the main 2011 ETS event.
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2011-08-22
Community Geophysical Event Response to the 23 August 2011, Mw=5.8 Virginia Earthquake On Tuesday, August 23, 2011, at 17:51:04 UTC, a magnitude 5.8 earthquake struck roughly 6 km (3.7 miles) below the surface of the Earth, 8 km (5 miles) southwest of Mineral, Virginia. The earthquake occurred within the Central Virginia Seismic Zone, which has produced many small and moderate earthquakes throughout recorded human history in the area, including a magnitude 4.8 in 1875 and a 4.5 event in 2003.
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2011-08
UNAVCO Community Response to the 11 March 2011, Mw=9.0 Tohoku, Japan Earthquake and Tsunami A magnitude 9.0 earthquake occurred at 02:46:23 PM local time on March 11, 2011, near the east coast of Honshu, Japan. Five minutes in duration, it triggered a tsunami of more than 10 m in height, causing immense damage along the northeast coast of Japan.
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2011-03
The Magnitude 6.3 South Island New Zealand Earthquake, Feb. 21, 2011 A magnitude 6.3 earthquake occurred Tuesday, February 22, 2011, at 12:51:43 PM local time (Feb. 21, 2011 at 23:51:43 UTC), close to Christchurch, New Zealand. No tsunami was reported. At least 160 people died with many more left missing.
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2011-03
Caribbean GPS Network to Aid Earthquake and Hurricane Forecasting A proposed network of GPS stations in the pan-Caribbean region will aid the monitoring, understanding, and prediction of earthquakes, hurricanes, flooding, volcanoes, and landslides.
Una nueva red expandida de estaciones de GPS en la región del Caribe va a ayudar con el monitoreo, entendimiento, y predicción de terremotos, tsunamis, huracanes, inundaciones, volcanes, y deslizamientos de tierra.
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2011-01
EarthScope Project: Measurements of Crustal Deformation in the Rio Grande Rift Region The Rio Grande Rift GPS Experiment, funded by the National Science Foundation's EarthScope program, provides a regional enhancement to the broader Plate Boundary Observatory (PBO) network. Its purpose is to measure relative motions at the Earth's surface and determine how the Rio Grande Rift region in Colorado and New Mexico is deforming.
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2011
PLUTONS GPS Installations, Part 3 PLUTONS is an integrative geophysical, geochemical, and geomorphological study involving researchers from many US, Canadian, South American, and British institutions. The project aims to uncover evidence for active mid-crustal intrusion and crustal formation at Uturuncu and Lazufre volcanoes, located in the central Andes.
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2011-11
Haiti GPS Network Following the earthquake of Jan 2010, 6 CGPS stations were installed in key locations around Haiti to measure the after effects and ongoing activity in the region. Of these 6 stations, only 1 was transmitting data back to UNAVCO reliably by the middle of 2011. It was determined from reconnaissance trips by local collaborators that the data transmission issues were due, for the most part, to system failures and one was actually caused by theft of the entire system. With that information in hand, a maintenance trip was deemed necessary.
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2011-11
Geodynamics of Ridge Collision on the Caribbean Plate and Panama Block: Part 2 Network Completion During a two week trip in November 2011, two additional continuous GPS stations were installed to complete a network designed to measure the deformation of the Panama tectonic block. This project is part of ongoing research on the geodynamics of the plate tectonic regiem in Central America. One of these stations is also part of a larger National Science Foundation project called CocoNet.
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2011-11
Carbon Sequestration monitoring using GPS Carbon Sequestration is a process for mitigating the contribution to global warming by capturing the excess CO2 emitted from fossil fuel burning power plants (and other industrial facilities). The CO2 is captured at its source and then injected into depleted oil and gas reservoirs.
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2011-10
GPS as a snow sensor: Doc's Meadow installation Snow is an important component of the climate system and a critical storage component in the hydrologic cycle. However, in situ observations of snow distribution are sparse, and remotely sensed products are imprecise and only available at a coarse spatial scale. While GPS geodesists have long recognized that snow can affect a GPS signal, it was only recently shown that a GPS receiver placed in a standard geodetic orientation can be used to measure snow depth.
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2011-10
Santorini, Greece GPS Network Installations and Upgrades Santorini is one of a group of five islands belonging to a partially submerged caldera in the Aegean Sea. The volcanic system responsible for the formation of the caldera is currently still active and last erupted in 1950.
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2011-09
Denali Dinosaur Dance-floor: Capturing a Mega-tracksite with Terrestrial Lidar for science, education and preservation Over two weeks in August, 2011 a team of scientists from three countries and four institutions collaborated on a field expedition to map, collect samples and identify dinosaur footprints and other trace fossils within a Late Cretaceous age outcrop located in Denali National Park. UNAVCO provided, equipment, logistical, and technical support for collecting a terrestrial lidar data set of the exposed dinosaur "dance floor."
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2011-08
Quantifying fluvial erosion rates on Cascade Volcanoes The goal of the project is to develop data sets that can be used to model erosion and deposition along rivers draining two Cascade volcanoes, Mt. Rainier and Mount St. Helens National Volcanic Monument. The project has two components, one focusing on processes of sedimentation on Tahoma Creek on Mt. Rainier, the other focusing on processes of erosion on the North Fork Toutle River near Mt. St Helens.
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2011-08
San Jacinto Fault Scanned with a Terrestrial Laser Scanner (TLS) Collecting geologic evidence from major pre-historic earthquakes provides clues to Earth's ancient seismic events. One method of data collection is to dissect a portion of ground across a known active fault, and catalogue, measure, and date the sediment left after each earthquake. Dr. Rockwell and his team are searching for the paleoseismic history of the southern San Jacinto Fault, namely the Clark strand.
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2011-06
Shetland Islands Climate and Settlement Project 2011 Researchers from several colleges in Maine, including Bates College, the University of Maine and the University of Southern Maine, are working together on a multidisciplinary and international 3-year NSF project focusing on the severe climate transformations of the Shetland Islands, the most northern of the Scottish Isles.
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2011-06
Mt. Pinatubo Terrestrial Laser Scanning Mt. Pintaubo (Philippines) erupted in 1991 and deposited up to 6km cubed of pyroclastic material in the drainage basins of the volcano. One of these drainages, The Pasig Potrero, is a river system that flows off the eastern flank of the volcano. 14km downslope of the summit crater, the river expands into a wide, braided alluvium over half a kilometer in width.
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2011-06
First CocoNET Continuously Operating GPS Station Installed COCONet seeks to understand the factors that control earthquake and hurricane hazards by adding 50 high-precision permanent GPS stations to 50 existing ones. These instruments are able to detect millimeter changes in the movement of Earth's crust and atmospheric water vapor that helps predict the path of hurricanes.
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2011-06
Geodynamics of Ridge Collision on the Caribbean Plate and Panama Block During a three week trip in May 2011, a team consisting of members from Penn State University (PSU), the Instituto de Geociencias at the Universidad de Panama (IGC), and UNAVCO constructed four permanent GPS monuments with power and telemetry systems. Additional reconnaissance for three or four new monuments was completed for a future trip.
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2011-05
Volcanic Flank Deformation and Stability: Arenal Case Study - Facility Highlights 2011 The Arenal Volcano, located in north-western Costa Rica, about 90 km northwest of San José, has been one of the ten most active volcanoes in the world until recently. Measuring 1,633 metres (5,358 ft), it is conically shaped with a crater spanning 140 metres (460 ft). As one of the youngest and historically most active volcanoes of all the mountains in Costa Rica, it had remained largely unexplored until the 1930s, with the first documented expedition taking place in 1937 to reach the summit.
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2011-03
Terrestrial Laser Scanning (TLS) Surveys in Everglades National Park Terrestrial laser scanning (TLS) surveys were conducted in March 2011 at four LTER (Long Term Ecological Research) study sites in Everglades National Park. TLS measurements are used to construct the vegetation structure and above ground biomass in 4 disparate vegetation communities. The vegetation community is defined by mangrove development and taxonomy at the site.
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2011-03
Antarctic Program Support 2010-2011 During the 2010-11 Antarctic field season the UNAVCO polar group supported an unprecedented 33 individual PI-based science campaign projects. One hundred twenty receivers and 28,000 pounds of supporting gear was sent to the continent for campaign support, including thirty five new NetR9 systems and twelve netR8's. Nineteen of the NetR9 receivers remain on the ice to support long term data collection at the Whillans Ice stream (WISSARD) and the Byrd Glacier.
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2011-02
POLENET 2010/11 Four continuous GPS stations were installed as part of the POLENET Antarctica network during the 2010/11 field campaign. Three planned stations remain uninstalled due to inclement weather in West Antarctica, and one station remains uninstalled due to lack of suitable bedrock site in the target area.
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2011-02
Join UNAVCO at the 2011 AGU Fall Meeting The AGU Fall Meeting is expected to draw a crowd of over 18,000 geophysicists from around the world. The Fall Meeting provides an opportunity for researchers, teachers, students, and consultants to present and review the latest issues affecting Earth, planets, and their environments in space. This meeting will cover topics in all areas of Earth and space sciences.
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2011-11
UNAVCO Hosts Workshop for Undergraduate Reserach Internship Leaders Leaders of NSF-funded internship programs (called "Research Experiences for Undergraduates" (REUs)) in the Geosciences Directorate gathered together in San Jose on October 26th and 27th, 2011, for a workshop.
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2011-11

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