AS-Monitor: Real-Time Seismic Data Acquisition System

Nodes have flexible 1C or 3C configurations with internal or external geophones

Automated Seismics provides services for short and long-term passive seismic monitoring using the AS-Monitor real-time wireless seismic data acquisition system.

  • 1C or 3C continuous seismic data acquisition with arrays of 1000+ nodes

  • Real-time wireless data transmission via WiFi

  • Solar powered for long-term and permanent deployments

  • Software for real-time data visualization and quality control

  • Autonomous operation

  • Flexible network geometry able to accommodate terrain and access restrictions

We offer rapid deployment across the contiguous US in all weather conditions.  With real-time monitoring, any data acquisition faults are addressed promptly.  Microseismic processing can also be conducted in tandem with the acquisition.

System Components

A single autonomous node deployed on 3 stakes

  • Node: Each fully autonomous node continuously digitizes seismic data from an internal geophone or externally connected geophone string.  An onboard GPS receiver provides accurate timing and location information.  Encrypted data is transmitted by WiFi at 20 second intervals and is also backed up on internal storage.  An integrated solar panel automatically recharges the node’s batteries when sunlight is available.

  • Substation: A substation contains a WiFi access point that communicates with groups of up to 50 1C nodes (or 18 3C nodes) over an area of up to 0.5 sq. km.  Multiple substations can be deployed to relay data from an array of nodes over a wide survey area to the base station.

  • Base Station: The base station collects data from every node via a WiFi bridge with each substation up to 15 km away.  A computer saves the data from each node to disk and runs software for real-time seismic data visualization and quality control.  Any data lost during transmission is automatically retransmitted in the next 20 second interval.  At the end of data acquisition any remaining missing data can be recovered from each node.  The data is also accessible in real-time over the internet in SEG-Y or other standard data formats.

Illustration of wireless data transmission from nodes through substations to the base station

A substation providing a WiFi access point to nodes

The base station where data is centrally collected

AS-Monitor software for real-time visualization and quality control of seismic data received at the base station. A magnitude 0.8 earthquake was detected in this 20 second period.