The WOM Pacific Intraplate catalog of earthquakes
is from:

Wysession, Michael E., Emile A. Okal and Kristin L.
Miller, 1991, "Intraplate Seismicity of the Pacific
Basin the 1913 - 1988," PAGEOPH (Pure and Applied 
Geophysics), vol. 135, no. 2, p. 261-359.

Catalog Sources:

ADH:  Angra de Heroismo, Observatorio Afonso Chaves,
      Ponta Delgada, Azores

ANT:  Antofagasta, Departamento de Geologia y 
      Geofisica, Universidad de Chile Santiago, Chile

BER:  Seismological Observatory, Bergen, Norway

BGS:  British Geological Survey, Global Seismology
      Unit, Edinburgh, U.K,

CGS:  United States Coast and Geodetic Survey

CNSK: Canadian and Scandinavian Networks

G-R:  Gutenberg and Richter, 1941, 1954

GS:   United States Geological Survey

ERL:  Earth Resources Lab, Geological Survey, Canada

HEL:  Institute of Seismology, University of Helsinki,
      Finland

HFS:  Hafgors Observatory, Stockholm, Sweden

LAO:  Large Aperture Seismic Array (LASA)

LDG, SYK:  Lamont-Doherty Geological Observatory,
      Palisades, New York

MDD:  Instituto Geografico y Catastral, Servico 
      de Sismologia e Ingenieria Sismica, Madrid, 
      Spain

NAO:  NTNF/NORSAR, Kjeller, Norway

NGD:  National Geophysical Data Center, Boulder,
      Colorado, USA

OTT:  Seismology Division Energy, Mines and 
      Resources, Ottawa, Ontario, Canada,

PDE:  Preliminary Determination of Epicenters, NEIC,
      Golden, Colorado, USA

ROM:  Instituto Nazionale di Geogisica, Rome, Italy

SPGM: Service de Physique du Globe, Morocco

TAC:  Tacabaya, Instituto de Geofisica, Mexico

TRN:  Seismic Research Unit, University of the West
      Indies, Trinidad

UPP:  Seismological Institute, Sweden 

USE:  United States Earthquake Bulletins

number_of_arrivals:  the number of travel-time 
      arrivals used in the final relocation.

origin_time_std:  the standard deviation of 
      the travel-time residuals of the relocation.

code_relocation:  

    Code = 1: (123 events) Relocation yields a 
         statistically significant intraplate
         epicenter.
  
    Code = 2: (72 events) Relocation confirms the
         bulletin listing as intraplate and the 
         bulletin listing has been retained.

    Code = 3: (52 events) Epicenter very well 
         located by the reporting agency with no 
         relocation deemed necessary.

    Code = 4: (28 events) Modern Event located by a
         local array at either Wake Island, 
         Enewetak Island or Ocean Bottom 
         seismometers, retained in this catalog 
         without relocation.

    Code = 5: (128 events) Modern event located by
         the local array of Polynesian stations, 
         not modified in this catalog.

    Code = 6: (3) Events which are part of a swarm,
         not included in this catalog.