PALEOSEISMICITY - THE SWEDISH CASE

Sweden is part of an old cratonic area. It was repeatedly glaciated du ring the Quaternary. After the 20 ka glaciation maximum, it has experi enced a glacial isostatic uplift of over 800 m. Numerous paleoseismic indices have been recorded giving evidence of frequent high-magnitude earthquakes from the time at around and just after the deglaciation. L ate Holocene archaeoseismic fracturing is also reported. These observa tions violate all claims of a possible safe long-term repository for h igh-level nuclear waste some 500 m down in the bedrock.