Kevin Fleming

kevin
Researcher Centre for Early Warning Systems Helmholtz Centre Potsdam German Research Centre for Geosciences
Potsdam
DEU

Resources

Earthquake catalogue (complete)

The provided earthquake catalogue for the Kyrgyz Republic includes earthquakes that occurred within 200 km of the country’s border, from around 250 B.C.E. until 2014. The catalogue was compiled starting from that provided by the Earthquake Model Central Asia (EMCA) project1, which considered events that had occurred until 2009 (Mikhailova et al., 2015). The catalogue has been extended by considering the seismicity in this area extracted from the bulletins released by the Kyrgyz Institute of Seismology (KIS) and the Incorporated Research Institutions for Seismology (IRIS2) until 2014. For events after 2009, those located with an azimuthal gap smaller than 180° have been considered from the KIS bulletin in order to guarantee an acceptably accurate location, while the IRIS catalogue was used in the cases where an event was not included in the KIS one. This selection allowed us to extend the spatial coverage of the catalogue, especially for the areas located outside of the country’s border within the 200 km buffer zone, as required by the project. Mikhailova, N. N., Mukambayev, A., Aristova, I. L., Kulikova, G., Ullah, S., Pilz, M. and Bindi, D. (2015) Central Asia Earthquake catalogue from ancient time to 2009, Annals of Geophysics, 58(1), S0102, doi: 10.4401/ag-6681. Data set for the World Bank supported project "Measuring Seismic Risk in Kyrgyz Republic" No: 1152423 Coodinator: Arup.

Shared on 16 nov 2015

Earthquake catalogue (declustered)

The provided earthquake catalogue for the Kyrgyz Republic includes earthquakes that occurred within 200 km of the country’s border, from around 250 B.C.E. until 2014. The original catalogue was compiled starting from that provided by the Earthquake Model Central Asia (EMCA) project1, which considered events that had occurred until 2009 (Mikhailova et al., 2015). The catalogue has been extended by considering the seismicity in this area extracted from the bulletins released by the Kyrgyz Institute of Seismology (KIS) and the Incorporated Research Institutions for Seismology (IRIS2) until 2014. For events after 2009, those located with an azimuthal gap smaller than 180° have been considered from the KIS bulletin in order to guarantee an acceptably accurate location, while the IRIS catalogue was used in the cases where an event was not included in the KIS one. This selection allowed us to extend the spatial coverage of the catalogue, especially for the areas located outside of the country’s border within the 200 km buffer zone, as required by the project. This catalogue has been declustered using the Gardner and Knopoff (Gardner and Knopoff, 1974) method, as implemented in the OpenQuake HMTK (Hazard Modellers Tool Kit, Weatherill, 2014). The declustering was carried out in two steps, for those events shallower than 50 km, and those between 50 and 300 km. Gardner, J.K. and Knopoff, L. (1974) Is the sequence of earthquakes in Southern California, with aftershocks removed, Poissonian? Bulletin of the Seismological Society of America, 64, 1363-1367. Mikhailova, N. N., Mukambayev, A., Aristova, I. L., Kulikova, G., Ullah, S., Pilz, M. and Bindi, D. (2015) Central Asia Earthquake catalogue from ancient time to 2009, Annals of Geophysics, 58(1), S0102, doi: 10.4401/ag-6681. Weatherill, G.A. (2014) OpenQuake Hazard Modeller’s Toolkit - User Guide. Global Earthquake Model (GEM). Technical Report. Data set for the World Bank supported project "Measuring Seismic Risk in Kyrgyz Republic" No: 1152423 Coodinator: Arup.

Shared on 16 nov 2015

Hazard Map of Kyrgyzstan, in terms of Peak Ground Acceleration (PGA) with 10% exceedance probability in 50 years and bedrock conditions

The hazard is defined in terms of expected acceleration, in fractions of g (gravity acceleration) bed rock conditions refer to a Vs30 of 760 m/s^2 The values have been computed on a grid of 0.5 degrees covering the whole Kyrgyzstan The points are provided in WGS84-UTM43N projection. Project "Estimating Seismic Risk in Kyrgyzstan", funded by the World Bank in collaboration with CAIAG and ARUP.

Shared on 14 jun 2017

Hazard Map of Kyrgyzstan: PGA - 10%, USGS global Vs30 dataset

Hazard Map or Kyrgyzstan, in terms of Peak Ground Acceleration (PGA) with 10% exceedance probability in 50 years, with site conditions provided by the USGS global Vs30 dataset. Project "Estimating Seismic Risk in Kyrgyzstan", funded by the World Bank in collaboration with CAIAG and ARUP.

Shared on 05 jun 2017

Hazard Map of Kyrgyzstan: PGA - 10%, bedrock condition

Hazard Map of Kyrgyzstan, in terms of Peak Ground Acceleration (PGA) with 10% exceedance probability in 50 years and bedrock conditions. Project "Estimating Seismic Risk in Kyrgyzstan", funded by the World Bank in collaboration with CAIAG and ARUP.

Shared on 05 jun 2017