The service enables you to receive emergency information via SMS, intended for situations where power, internet, and voice calling are unavailable, or when a quick summary of 'what's happening' is needed. If you send an SMS with the keyword 'DISASTER' to +18559430855, you will receive an automated response containing summarized emergency information. To retrieve further emergency information, you must send another SMS request. No unsolicited messages will be sent unless a request is received.