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Differential Uplift between BPRs at MJ03E & MJ03F

This page displays the Differential Uplift between two Bottom Pressure Recorders (NANO-BPRs) at nodes MJ03E (Eastern Caldera) and MJ03F (Central Caldera) at Axial Seamount. It is calculated by simply subtracting the de-tided depth from the BPR at MJ03F (Central Caldera, which has the highest inflation rate) and the BPR at MJ03E (Eastern Caldera, which has the lowest inflation rate). We think this differential uplift is a clearer representation of the volcanic inflation signal, because it removes the "noise" of tidal residuals and oceanographic effects that are common to both stations, which are only a few kilometers apart. We then use the average rate of Differentail Uplift for the last 4-weeks on the Forecasting - Method #2 page, and the rate from the last 12-weeks on the Forecasting - Method #3 page.


These data are from the BOTPT instruments, which are part of the National Science Foundation's (NSF) Ocean Observatories Initiative (OOI) Cabled Array seafloor observatory, operated by the University of Washington. The dates/times below are in GMT (+8 hrs of local standard time, or +7 hrs of DLS time on the US west coast).


Depth-difference (MJ03E-MJ03F), last 7 days

Plot of depth difference - last 7 days

Depth-difference (MJ03E-MJ03F), last 3 months

Plot of depth difference - last 3 months

Depth-difference (MJ03E-MJ03F), last 6 months

Plot of depth difference - last 6 months

Depth-difference (MJ03E-MJ03F), since the 2015 eruption (25 May 2015)

Plot of depth difference - since 25 May 2015

Depth-difference (MJ03E-MJ03F), Start to Present

Plot of depth difference - from start to present

More information

National Science Foundation | The Ocean Observatories Initiative | Cabled Array Observatory


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.