000019316 001__ 19316
000019316 005__ 20170118182310.0
000019316 04107 $$aeng
000019316 046__ $$k2017-01-09
000019316 100__ $$aCremen, Gemma
000019316 24500 $$aEvaluation of Ground Motion Intensities From Induced Earthquakes Using €œdid You Feel It?€ Data

000019316 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019316 260__ $$b
000019316 506__ $$arestricted
000019316 520__ $$2eng$$aThe Central and Eastern United States has recently experienced a large number of earthquakes that are suspected of being induced by anthropogenic activities. Seismic risk assessment is known to be sensitive to ground motion predictions, so it is important to understand whether the intensity of ground shaking produced by those earthquakes differs relative to motions from comparable natural earthquakes. Unfortunately, due to sparse instrumentation in this area, we have limited recorded strong motion data and thus the question has not been resolved definitively. Here we attempt to address this question using U.S. Geological Survey “Did You Feel It?” (DYFI) data. Using a large set of DYFI survey responses (each with an inferred Macroseismic Intensity and a corresponding earthquake magnitude and distance), we evaluate differences between responses to natural and induced earthquakes. We find a trend that induced earthquakes produce comparable or possibly larger intensities at close distances to the causal earthquake, but that these intensities attenuate faster than natural earthquakes. This finding is consistent with previous literature on the topic, which infers that this effect may be due to induced earthquakes being shallow but having relatively low stress drops. Further we find that the deviations cannot be explained by underlying factors such as differences in exposed populations, survey response rates, or deviations in responses after a sequence of felt earthquakes. This work lends further credibility to the hypothesis that induced earthquakes are capable of producing strong near-fault ground shaking. Future work will investigate the impact of this phenomenon on seismic risk in the Central and Eastern United States.

000019316 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019316 653__ $$aInduced earthquakes; Central and Eastern United States; “Did You Feel It?” data; Macroseismic intensities

000019316 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019316 720__ $$aCremen, Gemma$$iGupta, Abhineet$$iBaker, Jack
000019316 8560_ $$ffischerc@itam.cas.cz
000019316 8564_ $$s828097$$uhttps://invenio.itam.cas.cz/record/19316/files/3365.pdf$$yOriginal version of the author's contribution as presented on USB, paper 3365.
000019316 962__ $$r16048
000019316 980__ $$aPAPER