Using citizen science Raspberry Shake seismometers to enhance earthquake location and characterization: a case study from Wellington, New Zealand
DOI:
https://doi.org/10.26443/seismica.v4i1.1430Abstract
The recent development of low-cost citizen seismometers has opened new avenues for earthquake analysis. We explore the integration of Raspberry Shake citizen seismometers with the national GeoNet seismic network to improve the precision of earthquake locations in Wellington, New Zealand. We use a dataset of 19 earthquakes between magnitudes 1.1 and 3.5 and between hypocentral distances of 22 km and 102 km. Our findings demonstrate that using Raspberry Shake seismometers in conjunction with the GeoNet network is effective for both the locating and characterisation of earthquakes. Notably, we find that precise station locations are less critical for precise earthquake location, a significant factor given that the publicly available Raspberry Shake locations are obfuscated to protect user privacy. These results suggest that, dependent on network geometry, citizen seismometer data can be a valuable tool in seismic monitoring and improve earthquake location capability, whilst remaining cost-effective.
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