Other team members:
Martin Pratt Washington University in St. Louis
Scientific Focus of Data Sets: Earth systems science
Description of Data Sets:
The dataset used in this presentation included seismic waveforms and related metadata accessed through the facilities of IRIS (Incorporated Research Institutions for Seismology) Data Services, and specifically the IRIS Data Management Center. IRIS Data Services are funded through the Seismological Facilities for the Advancement of Geoscience and EarthScope (SAGE) Proposal of the National Science Foundation under Cooperative Agreement EAR-1261681. The dataset is publicly-available and free-to-use (http://www.fdsn.org/networks/detail/XF_2012/). This dataset was collected with land-based seismometers provided by the IRIS PASSCAL Instrument Center at New Mexico Tech and ocean-bottom seismometers provided by OBSIP, which is funded by the National Science Foundation.
Scientific Potential of Presentation:
Although remote dynamic triggering of shallow earthquakes has been well documented, there are no previous reported cases of remote dynamic triggering of intermediate-depth earthquakes. The mechanism producing intermediate-depth earthquakes is still uncertain, so observations of dynamic triggering could provide important insights. This study uses an amphibious array of seismometers deployed in the Mariana subduction zone between 2012-2013 to reveals a dynamically triggered earthquake sequence of intermediate-depth earthquakes following the 2012 April 11 Indian Ocean earthquakes. While we can provide evidence of dynamic triggering comparing seismicity rates after the arrival of a teleseismic wave to the background seismicity rate, which gives a temporal relationship, we can also explore the spatial relationship of the triggered earthquakes. This spatial relationship can give us insights to the environment and proposed mechanism for intermediate-depth earthquakes.
While a majority of seismic data is analyzed in 2-D mapping, utilizing 3-D and animations allows researchers to investigate their results in the way the events would present in nature. Using a Microsoft HoloLens Augmented Reality (AR) head-mounted display, the Fossett Laboratory for Virtual Planetary Exploration at Washington University in St. Louis developed an application to explore geologic concepts, such as outcrops and mineral structures. Using this application, we also can explore subduction zone seismic activity in a 4-D space. This presentation will illustrate the uses for researchers to explore their dataset in time and space, as well as present its uses as an educational aid in seismology. Not only can the user dynamically change parameters in real-time, but they are able to overlay other datasets for additional analysis.
Price, Amanda
Description
Current Insitute of Study/Organization: Washington University in St Louis
Currently Pursuing: Doctorate
Winner Status
- Grand Prize