Ulyanovskaya Mine disaster
The Ulyanovskaya Mine disaster was caused by a methane explosion that occurred on March 19 , 2007 in the Ulyanovskaya longwall coal mine in the Kemerovo Oblast . 
<triplet> Ulyanovskaya Mine disaster <subj> March 19, 2007 <obj> point in time <subj> Kemerovo Oblast <obj> located in the administrative territorial entity