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Avenida Petit Thouars 4377,

Lima, Perú


High performance broadband ocean bottom seismometers


Our range of OBS housings have been designed to perform at different depths via the most appropriate deployment method. Each can be combined with the sensor or sensors that will give you the dynamic range you require.

All of our OBS systems are fitted with a magnetometer to determine instrument orientation at depth to maximise data quality and your investment. To find out more about our
OBS range take a look at our Güralp OBS brochure

Introducing Aquarius, a compact, free-fall OBS that offers the option of near real-time alert notifications for tsunami or earthquake early warning

We are pleased to introduce a new form of free-fall, stand-alone OBS that utilises acoustic telemetry to aid installation and data retrieval to depths of up to 6000 m. There is also an enhanced version, Aquarius+, that can deliver triggered event alerts to the surface in near real-time, and is controllable from the surface to retrieve more detailed data selected by time frame or by event. For more information see our Aquarius datasheet here.

Key Features

    Key Features

  • Choose from:
    • Full autonomous operation with or without acoustic communication/alert capability
    • Real time cabled systems for incorporation into monitoring networks
  • Deployable by ROV, free-fall or on a winch
  • All OBS systems are fitted with a magnetometer to determine instrument orientation at depth
  • Option to incorporate differential pressure gauges (DPGs) or absolute pressure gauges (APGs) for applications such as tsunami early warning systems
Model range

Model range

< class="text-left">Maris - A real-time cabled OBS, pushed or cored into the seafloor, suitable fordepths up to to 6000 m/19,685 ft.

Orcus - A real-time cabled OBS that sits fully or partially buried on the seafloor for depths of up to to 6000 m/19,685 ft

Aquarius - A free-fall, stand alone, compact OBS that uses acoustic telemetry with an option for near real-time alerts, for depths of up to 6000 m/19,685 ft

Breve - A rapid response OBS that is lowered on a winch into shallow water of up to 150 m /492 ft depth

Liber - A freefall OBS for temporary deployments in waters of up to 6000 m/19,685 ft



See the Güralp OBS brochure or details on OBS capabilities and sensor performance
See the Güralp Aquarius datasheet here.

Aquarius OBS