Supporting the science response to the 2021 Haiti earthquake

On August 14, a devastating magnitude 7.2 earthquake hit Nippes, Haiti, causing thousands of deaths and widespread damage to homes, churches, schools, and other infrastructure. In the midst of this humanitarian crisis, geoscientists are working to understand exactly what happened on the fault (or faults) responsible—which is critical to understanding future risk.

Alaska Field Blog: Network Repairs

This is one post in a series on the Alaska Amphibious Community Seismic Experiment blog following a field campaign in response to the magnitude 8.2 Chignik earthquake. (You can find the UNAVCO event response page for this earthquake here.) We are reprinting posts contributed by UNAVCO staff here but you can follow along on the blog to read the rest. This post comes from UNAVCO Project Manager Ken Austin.

UNAVCO & IRIS Collaborate in Alaska

As we work together to establish a vision for a comprehensive geophysical observatory beyond 2023, we recognize the importance of demonstrating the success of our collaboration now and in the past. The UNAVCO operated GAGE facility and the SAGE facility operated by IRIS comprise future components of The EarthScope Consortium, Inc.

Terrestrial Laser Scanning for Avalanche Forecasting

Project Overview Researchers at Montana State University’s Subzero Research Laboratory (SRL) are exploring the potential for terrestrial laser scanners (TLS) to detect avalanche risk in real-time. An avalanche early warning system could significantly reduce the costs associated with shutting down mountain roadways and ski areas as well as save lives. In early December 2019, UNAVCO … Continued

Measuring Coastal Subsidence for Resilience in Florida

Project Overview Florida coastal communities are periodically subjected to flooding events, which are induced by heavy rain, high tide, and storm surge. Over the past decade several coastal communities have experienced an increase in flooding frequency, causing significant impacts to property, commerce, and overall quality of life. Shimon Wdowinski’s recent study of Miami Beach flooding … Continued

Reinvigorating the Tanzania Volcano Observatory GNSS Network

Project Overview Ol Doinyo Lengai, a frequently active volcano in northern Tanzania, is instrumented with a real-time GNSS network to understand transient behavior and the relationship between volcanism and rifting. The data are telemetered to UNAVCO and then distributed free with open access through the UNAVCO Data Archive as well as the Tanzania Volcano Observatory … Continued

Contributing to Sustainable Farming in Bangladesh with GNSS

Project Overview Farming in coastal Bangladesh relies on polders, low-lying tracts of land enclosed by earthen embankments that protect the land from tidal surges. In a dynamic deltaic environment and a changing climate, the polders are under threat. Factors influencing long-term stability of polders include subsidence, sedimentation, river migrations, flooding, storm surges, and sea level … Continued

Supporting Multiple Projects in Nicaragua

Project Overview Fieldwork in Nicaragua conducted in early February 2020 supported three different projects funded by NSF and NASA, as noted above. The work involved setting up GPS equipment for campaign surveys (eGPS), installing new campaign monuments, repairing continuous GPS stations (cGPS), installing a new cGPS station, installing a gas sensor on Masaya volcano, UAS … Continued

Multi-Method Topographic Survey at Lake Agnes Rock Glacier, Colorado

Project Overview The Lake Agnes rock glacier dominates the Lake Agnes cirque, near Cameron Pass in northern Colorado, however, little is known about its kinematics or dynamics. To determine the motion of the rock glacier, UNAVCO supported Colorado State University researchers with two sets of tools that were used simultaneously: terrestrial laser scanning (TLS) and … Continued

Geodetic Infrastructure in the Northern Costa Rica Subduction Zone

Project Overview From the NSF award abstractThe great earthquakes and tsunamis of 2004 (Sumatra) and 2011 (Japan) were wake-up calls that our forecasting skill for these catastrophic events remains poor. Measurement of the slow motions of the Earth’s surface near active faults could help to forecast the location and the size of future earthquakes. This … Continued