OR/18/015 Appendix 2 - Key to phase data encoding: Difference between revisions
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Latest revision as of 15:10, 3 December 2019
Galloway, D D. 2018. Bulletin of British Earthquakes 2017. British Geological Survey. (OR/18/015). |
Time | Time of occurrence of event in hours, mins and secs, (UTC). |
Lat | Latitude of the event, N indicates North. |
Lon | Longitude of the event, W indicates West, E indicates East. |
Depth | Depth of the hypocentre in kilometres. |
Grid Ref | UK National Grid Reference in kilometres east (kmE) and kilometres north (kmN) of grid origin. |
RMS | Root Mean Square of the travel time residuals in seconds. |
Velocity Model | Velocity model used in location. |
Magnitude | Richter local magnitude of the event. |
Locality | A geographical indication of the epicentral area, usually the nearest town followed by the region. |
Intensity | Maximum EMS intensity. 2, 3, 4, 5 etc. describes the maximum EMS intensity produced by the event. |
Comments | Additional comments about the event e.g.: C/F see list of comments and abbreviations in Appendix 1. |
STAT | Station name |
CO | Z=vertical N=north south E=east west |
DIST | Distance from earthquake to station (km) |
PHAS | Phase identifier; the first letter characterizes onset E=emergent I=impulsive, the second indicates the phase e.g. P, S, PG, PN, IAML |
WT | Weighting factor to arrival. 0 or blank=full weighting to 4=zero weighting (ignore). 9=use P S interval only for this line. |
P | Polarity C=Compression/up D=Dilatation/down |
HrMn | Hour, Minute of event |
SECS | Seconds of event |
AMPL | Amplitude centre to peak in nanometres (nm) |
PERI | Period in seconds |
RES | Station residual |