Observed Behavior of Earthen Structures During the Pisco (PERU) Earthquake of August 15, 2007

Abstract eng:
On August 15, 2007, at 18:40 local time (23:40 UTC) an earthquake of magnitude Mw 8.0, shook the southern area of central Peru. Ica, Lima and Huancavelica were the most affected regions. According to the latest statistics 593 people died, 48 208 dwellings completely collapsed and 45 500 were left uninhabitable (INDECI 2008). Adobe dwellings –both old and new– along with historical monuments (such as churches that were built using soil or bricks) were the most affected structures. Constructions built with fired clay brick or with reinforced concrete didn’t suffer from strong damage, except when the buildings were poorly constructed or they did not have a secure structural configuration. The intention of this report is to describe the damage that the earthquake caused in Pisco’s dwellings and earthen structures. The report will also present a brief analysis of the various construction failures and errors that were encountered, along with recommendations on how to improve the seismic-resistance of the ground buildings.

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