There are at least 2 groups by the name Alerta: (1) Colombian Roots Reggae group. (2) A Dutch post-punk band that released a split 12" with The Ex and 1 Lp 'In The Land of a Thousand Pretty Dreams' in the early 80's. The guitarist Ton from other post punk band Three Clouds In The Sky played bass for Alerta.

Read more about Alerta on Last.fm.