Several emergency nets are currently active as Hurricane Maria heads for Caribbean islands and a major earthquake strikes Mexico. The following nets are active as of 20 Sept 2017 UTC, based on information from ARRL and other sources:
Mexican earthquake response:
FMRE National Emergency Net - 7.060 MHz
Hurricane Maria response:
* Caribbean Emergency Weather Net - 3.815 & 7.188 MHz
* FEMA 60-Meter Interoperability Nets - 5.331 MHz (voice) & 5.346.5 MHz (digital) - FEMA IS A PRIMARY USER OF 60 METERS. AMATEURS MAY NOT CAUSE INTERFERENCE TO AND MUST ACCEPT INTERFERENCE FROM FEMA OPERATIONS.
* Hurricane Watch Net - 7.268 & 14.325 MHz
* SATERN SSB Net - 14.265 MHz (handling only OUTBOUND health & welfare messages)
PLEASE KEEP THESE FREQUENCIES CLEAR FOR EARTHQUAKE/HURRICANE-RELATED TRAFFIC.
In addition, the ARRL says W1AW has suspended bulletin transmissions and visitor operations in order to monitor the various emergency nets and provide assistance as needed.