19–23 Jun 2023
Hofburg Palace & Online
Europe/Vienna timezone

Improving Localization of Mining Activities Using Infrasound and Seismic Data: A Case for I35NA and I47ZA

21 Jun 2023, 09:00


Board: 40
E-poster T2.3 Seismoacoustic Sources in Theory and Practice Lightning talks: P2.1, P2.3, P4.4


Onkgopotse Ntibinyane (CTBTO Preparatory Commission)


Seismological bulletins from local and regional seismic stations have identified signals associated with mining explosions in the Orapa mining area, Botswana. Here we present the results of integrating detections from regional seismic networks and the International Monitoring System (IMS) network. Using the local bulletins and catalogs, we requested IMS data via the Extended NDC-in-A- Box (ENIAB) and retrieved local station data using the Obspy library. The combined analysis of seismic and infrasound signals gave additional information about the origin time and location of events as well as distinguishing mine explosions from natural events. Infrasound detections were generated using the ENIAB’s DTK-GPMCC whereas Geotool was used to analyse seismic data. Geotool was also used to create a final integrated bulletin. Combining the infrasound stations of IS47 (South Africa) and IS35 (Namibia) with the local seismic stations improved the location of these seismoacoustic events.

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The infrasound network of the International Monitoring System (IMS) developed for the verification of the Comprehensive Nuclear-Test-Ban Treaty showed a high capacity to detect, localize and identify most of these seismoacoustic events.

E-mail [email protected]

Primary authors

Onkgopotse Ntibinyane (CTBTO Preparatory Commission) Mr Joseph Maritinkole (Botswana Geoscience Institute)

Presentation materials