Abstract
EARLY in the morning of Friday, September 10, three slight earthquakes were felt in North Devon in the district between Morte Bay and Exmoor Forest. The first occurred at about 12.15 a.m., and this was followed about an hour later by two slighter shocks separated by an interval of ten minutes. Though it is reported that part of a chimney was dislodged at East Down, and that the light at Bull Point lighthouse was extinguished, it is doubtful if the intensity of the shock at any place exceeded the degree 4 of the Rossi-Forel scale.
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DAVISON, C. The Exmoor Earthquake of September 10. Nature 106, 132 (1920). https://doi.org/10.1038/106132a0
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DOI: https://doi.org/10.1038/106132a0