Earth, Planets and Space

Table 2 Measurements for X and Y phases

From: Dominant role of temperature on deep earthquake mechanics for the Tonga slab near the bottom of the upper mantle

			X				Y
Event/array	h(km)	Δt (s)	Δp	Depth	A	Δt (s)	Δp	Depth
EV2/UW	677	8.6	+0.02	642	0.05	-	-	-
EV4/JA	670	7.1	+0.06	640	0.04	10.4	+0.03	627
EV6/UW	669	6.7	−0.01	642	0.07	10.2	+0.02	629
EV8/HI	673	8.0	+0.03	639	+0.10	11.6	+0.02	627
EV8/UW	673	9.6	0.00	635	0.04	-	-	-
EV9/HI	675	8.1	+0.03	641	−0.14	12.3	+0.03	624
EV10/HI	670	7.5	+0.02	639	−0.07	11.2	+0.02	624
EV11/HI	669	7.6	+0.02	638	−0.10	10.0	+0.0	628
EV13/HI	661	4.8	0.0	642	0.03	9.1	+0.02	624

A is the amplitude of the X phase relative to the direct P wave. Plus or minus signs are shown for A only when the polarities are certain. HI, JA, and UW indicate Hi-net, J-array, and University of Washington array, respectively.

Back to article page