HPWREN Wireless Consortium

HPWREN Mount Laguna
Seismic Warning Systems is building a robust and reliable earthquake warning system to protect Southern California using the HPWREN wireless system as a communications backbone.

Regional Earthquake Warning and HPWREN

Seismic Warning Systems has joined HPWREN as a Tier 1 member. HPWREN operates a dedicated wireless network that covers much of Southern California. We are working to extend the system's reach into the Coachella Valley and Imperial County to provide the communications backbone for the nation's first Regional Earthquake Warning System. When completed, this system will protect thousands of school children and hundreds of first responders and emergency personnel using a sustainable public-private partnership with local and regional governments. Earthquake warning will also be available commercially.

HPWREN System Map


The High Performance Wireless Research and Education Network (HPWREN) is a project of the Applied Network Research (ANR) group at the San Diego Supercomputer Center, University of California San Diego, to support Internet-data applications in the research, education, and public safety realms.

HPWREN functions as a collaborative, Internet-connected cyberinfrastructure. The project supports a high-bandwidth wireless data network in San Diego, Riverside, and Imperial counties.

The network supports a wide range of network application requirements, ranging from high-volume astronomical data generated by the Palomar Observatory, to a steady output of continuous, low-volume traffic from devices such as earthquake sensors, which deliver real-time data. HPWREN also includes permanent sites as well as those created temporarily and on short notice, such as firefighter Incident Command Posts (ICPs). HPWREN saw use in several of the major wild fires to hit San Diego County across many years.

More information is available at the HPWREN web site.

How Wireless Helps the QuakeGuard Network

Station with multiple wireless links

Redundant Wireless Communications

Seismic sensor stations must continue to operate even when power and communications fail during an earthquake. To ensure continuous operation, we are deploying stations connected with point-to-point, redundant wireless connections, solar power with battery backup, and earthquake resistant design.

ANZA seismic station with wireless link

Remote Station Access

Some stations must be located in remote areas, to be near hazardous faults. Many of these are far from power and regular communications; even cellular. Dedicated wireless communications provide the flexibility to put stations wherever they are needed.

The First Regional Earthquake Warning System

ICREWS Map 2014

Seismic Warning Systems is deploying the nation's first Regional Earthquake Warning System in Imperial County. Once the system is operational, warning will be provided to fire stations, police stations, hospitals, and the water district.

The faults threatening Imperial County are generally located in unpopulated areas of the County. The HPWREN wireless system will provide communications to these sites so that sensor stations can be placed where they will be able to rapidly detect likely earthquakes.

The sensor network will also be extended into the Coachella Valley, immediately to the north.

More information is available about the Imperial County Regional Earthquake Warning System.