Event label	Optional label	Method/Device	Abbreviation	O2A Registry URI	Date/Time	Latitude	Longitude	Elevation	Date/Time end	Latitude end	Longitude end	Elevation end	Comment
M66/4a-track		Underway cruise track measurements	CT		2005-11-21T00:00:00	12.48660	-87.16720		2005-12-10T00:00:00	-2.23570	-79.87640		Corinto - Guayaquil
M66/4a_OBH58		Ocean bottom hydrophone	OBH			11.12080	-87.62950	-4814					
M66/4a_OBS60		Ocean bottom seismometer	OBS			11.21940	-87.52680	-4402					
M66/4a_OBH59		Ocean bottom hydrophone	OBH			11.16940	-87.57560	-5339					
M66/4a_OBS56		Ocean bottom seismometer	OBS			10.89890	-87.83860	-3046					
M66/4a_OBS55		Ocean bottom seismometer	OBS			10.84530	-87.89240	-2977					
M66/4a_OBH54		Ocean bottom hydrophone	OBH			10.79210	-87.94360	-2830					
M66/4a_OBS53		Ocean bottom seismometer	OBS			10.68250	-88.05080	-2918					
M66/4a_OBS52		Ocean bottom seismometer	OBS			10.58170	-88.14890	-2996					
M66/4a_OBH51		Ocean bottom hydrophone	OBH			10.53250	-88.19710	-3064					
M66/4a_OBS50		Ocean bottom seismometer	OBS			10.48190	-88.24530	-3264					
M66/4a_OBS49		Ocean bottom seismometer	OBS			10.43140	-88.29940	-3248					
M66/4a_OBS48		Ocean bottom seismometer	OBS			10.57250	-87.63420	-2932					
M66/4a_OBS61		Ocean bottom seismometer	OBS			11.27080	-87.47500	-3439					
M66/4a_OBS46		Ocean bottom seismometer	OBS			10.68250	-87.73980	-2579					
M66/4a_OBH45		Ocean bottom hydrophone	OBH			10.78870	-87.84250	-2581					
M66/4a_OBS44		Ocean bottom seismometer	OBS			10.89870	-87.94500	-3024					
M66/4a_OBS43		Ocean bottom seismometer	OBS			10.95390	-87.99670	-2985					
M66/4a_OBH42		Ocean bottom hydrophone	OBH			11.06190	-88.09670	-3160					
M66/4a_OBH40		Ocean bottom hydrophone	OBH			11.43430	-87.83820	-4738					
M66/4a_OBS39		Ocean bottom seismometer	OBS			11.33350	-87.73920	-4862					
M66/4a_OBS38		Ocean bottom seismometer	OBS			11.22170	-87.62730	-5143					
M66/4a_OBS37		Ocean bottom seismometer	OBS			11.11100	-87.52080	-5292					
M66/4a_OBS36		Ocean bottom seismometer	OBS			11.00610	-87.41680	-5012					
M66/4a_OBS35		Ocean bottom seismometer	OBS			10.90210	-87.31610	-5070					
M66/4a_OBH34		Ocean bottom hydrophone	OBH			10.78900	-87.20440	-4997					
M66/4a_OBS47		Ocean bottom seismometer	OBS			10.62730	-87.68550	-2884