All events with M 6 since 1706 were used (listed in Table 5, following Halldórsson et al. 1984; after Hackman et al. 1990, Stefánsson and Halldórsson 1988, and Stefánsson et al. 1993). The catalogue is supposed to be complete from 1706 for these earthquakes.
All ruptures were set to be oriented N-S, according to the isolines of damage intensity and surface ruptures shown in Figure 27. As only the 1912 event was instrumentally recorded, the source parameters are not very accurate - a problem to be discussed further below.