Articles | Volume 8, issue 2
Research article
07 Apr 2017
Research article |  | 07 Apr 2017

Path and site effects deduced from merged transfrontier internet macroseismic data of two recent M4 earthquakes in northwest Europe using a grid cell approach

Koen Van Noten, Thomas Lecocq, Christophe Sira, Klaus-G. Hinzen, and Thierry Camelbeeck

Data sets

Ondergrondmodellen DINOloket

Depth to bedrock map Databank Ondergrond Vlaanderen

Short summary
Every person is a seismometer. By using people’s reports submitted online to European seismological agencies, we made new grid cell shaking intensity maps of the 2011 Goch (DE) and 2015 Ramsgate (UK) M4 earthquakes. Both events were widely felt in NW Europe and had non-concentric shaking intensity patterns which are strongly linked to the bedrock depth in the felt area. Storing intensity data in grid cells is a promising tool for seismological agencies to share intensity data anonymously.