Short-period seismometers. Remastered.

Introducing the Sixaola.


At OSOP we tear down long-standing traditions to make way for a brighter future. For as long as seismologist’s can remember they have had to spend fortunes on ever broader broad-band seismometers. This drained budgets and kept coverage low. No more. With the newest version of the Sixaola seismometer, you can install 15 times more stations for the price of a single broad band. You will be in P heaven.

The Sixaola was designed with you in mind. Simplicity was THE driving force in her design. Having grown tired of installing seismometers that required a PhD in engineering to operate, we designed our own. it only takes a few minutes of practice to master the Sixaola.

World-wide Sixaola Sales (updated October, 2015)
Total: 203

Advantages over other popular short-period instruments like the Lennartz 3D include:

Made in Panama by OSOP

Made in Panama by OSOP

  • An all-in-one solution. We have integrated the sensor, the digitizer, the computer and the GPS into a single box.
  • At OSOP, user friendly design is King. The Sixaola comes with a web interface to allow a rapid configuration.
  • Whereas, the Lennartz gives a single-ended (or “psuedo-differential”) output, the Sixaola converts the geophone’s single-ended output to differential, allowing the Sixaola to use the digitizer’s entire dynamic range.
  • We have extended the flat portion of the geophone’s response curve even lower to 0.5 Hz and added an additional pole at 6 seconds to provide for a steeper noise reduction before the 5-7 second microseism noise peak.
  • The signal is converted to velocity even earlier on in the circuit. This is unique to OSOP’s design (Thank’s Dave!). The advantage is that acceleration is not seen in any stage, thus reducing the possibility of clipping from high frequency noise.
  • The Sixaola comes with her DATALESS, xml, SAC_PZ and RESP files already generated and ready for download from her on-board computer.

And yeah, the Sixaola speaks SeedLink. 


  • 6 components: 3 components of velocity and 3 of acceleration
  • Digitizer: 24 bit
  • OS: Debian
  • Software for data acquisition: SeedLink
  • Timing: GPS or NTP
  • Ethernet, TCP/IP
  • USB memory
  • More specs: Complete Specifications


90 units testing prior to delivery to the RSN-UCR in Costa Rica

Recommended Applications:

  • Local and Regional Seismic Monitoring
  • Urban Monitoring
  • Volcano Monitoring
  • Surveillance of Geothermal Fields
  • Registration of Seismic Noise and Studies of Soil Amplification.

Brochures and Manuals

Need a Quote?

Email us at [email protected]

See our Order Guide.

Need another solution? Let us design it for you. Send your requirements to our technical team at [email protected].

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