**4. Conclusions**

Tsunami events with the deposition of tsunamites are well recorded in Sweden [1, 2, 3, 4]. Up to today, 17 events have been documented and described (**Table 1** and **Figure 1**). The triggering factor was high-magnitude paleoseismic events ranging from ∼13,000 BP to ∼800 BP. In two cases, however, the triggering factor was a violent methane-venting episode [1–3, 23]. **Figure 1** summarizes the estimated tsunami heights: 6 of 1–5 m, 5 of 6–10 m, 5 of 11–15 m and 1 of 16– 20 m.

The absence of recognition of tsunami events in Sweden by other scientists seems to be routed both in personal ignorance and in pressure from the nuclear power industry, which has chosen to neglect evidence of high seismic activity that might invalidate their claim of a safe deposition of the high-level nuclear waste in the bedrock. A safety analysis ignoring observational fact [33] can, of course, never be trustworthy as shown in a devastating manner by screening available field evidence in a long-term safety perspective [2].

A generally high paleoseismic activity during the deglacial phase of Sweden, a number of Late Holocene events reaching magnitudes of *M*∼ 7 and a sequence of 17 tsunami events are facts that must be assimilated in the history of Quaternary geology of Sweden [34] like in the longterm safety of a nuclear waste storage in the bedrock [2, 35].
