Included here are 3D post-stack time migrated data from Montserrat, Lesser Antilles. The data were collected aboard RV METEOR in 2019 during Research Cruise M154/1 using GEOMAR's P-Cable seismic system. Seismic source were two Generator-Injector airguns fired in TRUE GI mode with generator and injector volumes of 105 cubic inches. The source was towed at a nominal depth of 2 m beneath the sea surface. Shot interval was 5 seconds at a ship speed of ~3.5 knots. Gun pressure was set at 160 bar. The receiver geometry consisted of 14 to 16 streamer sections attached to a 199 m long cross cable. Processing included: 3D geometry application, trace editing, static time corrections, anomalous amplitude attenuation, FK filtering, pre-stack trace interpolation, adaptive subtraction multiple suppression, sorting to common midpoint gathers, normal moveout correction (1580 m/s to 1725 m/s gradient velocity model), stacking, trace interpolation, 3D FK coherency filtering, 3D finite difference migration (1580 m/s to 1725 m/s gradient velocity model; first inline, then crossline). The dataset has a horizontal resolution of 3.125 m (bin size) and a dominant frequency of ~100 Hz.

Information required for loading the data:Data corners:Corner 1: Inline=1058, Crossline=1041, X=613125.00 m Y=1834222.00 mCorner 2: Inline=1058, Crossline=5244, X=601750.00 m Y=1840789.20 mCorner 3: Inline=2105, Crossline=5244, X=603386.00 m Y=1843623.00 mCorner 4: Inline=2105, Crossline=1041, X= 614760.60 m Y=1837055.60 mCoordinate system: WGS 84 UTM zone 20N: EPSG 32620Inline and Crossline headers: Bytes 193 (inlines) and 189 (crosslines)Coordinate headers: Bytes 181-184 (X coord) and Bytes 185-188 (Y coord). Coordinates in centimetres (COORD_SCALE = -100)Trace length=3000 ms, Sample rate=1 ms, Total traces=4405792 (935 inlines x 4204 xlines)Further additional funding:- Cruise financed by DFG (MerMet 14-104)- Data research financed by Program-Oriented Funding IV (PoF IV) of the Helmholtz Association