Gabriela Gonzalez ( @ gabriela2400 ) , a doctor and neighbour living in the area , told Venezuelan journalist Nelson Bocaranda that the refinery 's alarm system was activated half an hour before the accident and then turned off .
Gabriela Gonzalez ( @ gabriela2400 ) , qulliri ukhamarak uka sunan jakasirix venezolano Nelson Bocaranda yatiyiriruw yatiyi niya uka naraqataw naktana ukatx jiwarayataxanw sasinw yatiyi .