Table 1

Table 1. P and S Reading Uncertainties Assessed by Comparing Independent Picks of the Same Arrival

		Uncertainties
Data Type	Impulsive (P phase /S phase), s	Unreported^a (P phase /S phase), s	Emergent (P phase /S phase), s
Local, IGN^b and IAG^c	0.2/1.0^d	0.4^d/-	0.4/0.8
Local, CNCPRST^e	0.5/0.8	0.8^d/0.7	0.8/0.7
Local, Mohammed V^f	0.4/0.8	0.4/0.8	0.4/0.8
Teleseism, IGN and IAG	0.3	0.3	-
Teleseism, CNCPRST^g	0.3	0.6	-

^aPhase not reported as either impulsive or emergent.
^bInstituto Geografico Nacional, Madrid, Spain.
^cInstituto Andaluz de Geofisica, Granada, Spain.
^dLimited data.
^eCentre National de Coordination et de Planification de la Recherche Scientifique et Technique, Rabat, Morocco.
^fPhysique du Globe, Mohammed V University, Rabat, Morocco.
^gTeleseismic residuals for stations IFR, TAF, and RBA were found to be particularly scattered, hence arrivals reported to these stations were assigned an increased reading uncertainty (1 s).