科研之友
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摘要
Analysis of a light detection and ranging-derived digital elevation model has revealed previously unknown fault scarps in central Jamtland, Sweden. These are interpreted to have been formed by earthquakes at the time of deglaciation, c. 10ka BP, in an area with current low-magnitude seismicity. The dating is based upon morphology and comparison with similar features at other locations in Sweden but not supported by independent dating. Observed scarps are 0.4-6km long, 2-8m high, trending SSW-NNE to WSW-ENE, the northern and western sides uplifted. The dimensions of the scarps suggest an approximate moment magnitude M 7 of the strongest corresponding earthquakes.
- 出版日期2015-10-2
