Long-Term Tilt Rates

This page displays long-term rates of tilt, calculated using data from the LILY sensors on the BOTPT instruments at Axial Seamount, as part of the National Science Foundation's (NSF) Ocean Observatories Initiative (OOI) Regional Cabled Array (RCA), operated by the University of Washington. The dates/times in the plots below are in GMT (+8 hrs of local PST, or +7 hrs of PDT time on the US west coast).

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Long-Term Tilt Rates (post-2015-eruption re-inflation)

The plots below show the long-term tilt rates, from each of the four BOTPT instruments, calculated from 1-day means of the LILY tiltmeter data over time, with tilt magnitude calculated since 28 June 2015, and re-leveling offsets removed. Note there are still some remaining offsets in the LILY tilt time-series that may be due to minor instrument shifts on the seafloor. These lead to short-term apparent decreases in tilt rate, which should be ignored. However, other pauses or reversals in the tilt rate are real. Note that these plots only plot cummulative tilt magnitude and ignore tilt direction. There are three plots for each of the four BOTPT instruments, showing the calculated tilt rates for the last 2 weeks, how these rates have varied over the last 12 months, and since the 2015 eruption. These plots are updated once a day.

BOTPT-A301-MJ03F - Central Caldera

Plot of long-term uplift rates

Plot 1: Plot of long-term rates of tilt calculated from the last 1- and 2-weeks.

Plot of long-term uplift rates

Plot 2: Plot of how the long-term tilt rates have varied over the last 12 months.

Plot of long-term uplift rates

Plot 3: Plot of how the long-term tilt rates have varied since 28 June 2015.

BOTPT-A302-MJ03E - Eastern Caldera

Plot of long-term uplift rates

Plot 4: Plot of long-term rates of tilt calculated from the last 1- and 2-weeks.

Plot of long-term uplift rates

Plot 5: Plot of how the long-term tilt rates have varied over the last 12 months.

Plot of long-term uplift rates

Plot 6: Plot of how the long-term tilt rates have varied since 28 June 2015.

BOTPT-A303-MJ03D - International District

Plot of long-term uplift rates

Plot 7: Plot of long-term rates of tilt calculated from the last 1- and 2-weeks.

Plot of long-term uplift rates

Plot 8: Plot of how the long-term tilt rates have varied over the last 12 months.

Plot of long-term uplift rates

Plot 9: Plot of how the long-term tilt rates have varied since 28 June 2015.

BOTPT-A304-MJ03B - ASHES Vent field

Plot of long-term uplift rates

Plot 10: Plot of long-term rates of tilt calculated from the last 1- and 2-weeks.

Plot of long-term uplift rates

Plot 11: Plot of how the long-term tilt rates have varied over the last 12 months.

Plot of long-term uplift rates

Plot 12: Plot of how the long-term tilt rates have varied since 15 September 2017 (after it was installed).

This site is administered by Bill Chadwick, Oregon State University. Data processing and display software development by Andy Lau of OSU/CIMERS. Computer system support provided by Brian Kahn of OSU/CIMERS and Thomas Olson of OSU/CEOAS.

Links to More Information

National Science Foundation | The Ocean Observatories Initiative | Regional Cabled Array | Interactive Oceans at University of Washington

Required OOI disclaimer: This is provided as pre-commissioned data intended for scientific use, and is subject to the OOI Data Policy. This data has not been through Quality Assurance checks.

Required NSF disclaimer: This material is based upon work supported by the National Science Foundation. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.