HELEQ: Mount Saint Helens Earthquake Cluster associated with the...

In RTOMO: Visualization for Seismic Tomography

Description

Mount Saint Helens Earthquake Cluster associated with the 1980 Eruption

Usage

data(HELEQ)

Format

List:

yr

year

mo

Month

dom

Day of Month

hr

Hour

mi

Minute

sec

Second

jd

Julian Day

lat

latitude, signed decimal degree (West is negative)

lon

longitude, signed decimal degree

z

depth, km

mag

magitude

gap

gap

delta

distance to nearest station

rms

root, mean square error

hozerr

horrizontal uncertainty, km

Details

This is a small selection of the events associated with the eruption.

References

Lees, J. M. (1992): The magma system of Mount St. Helens: Non-linear high resolution P-wave tomography, J. Volc. Geoth. Res., 53(1-4), 103-116.

Lees, J. M. and R. S. Crosson (1989): Tomographic inversion for three-dimensional velocity structure at Mount St. Helens using earthquake data, J. Geophys. Res., 94(B5), 5716-5728.

Examples

data(HELEQ)
## maybe str(HELEQ) ; plot(HELEQ) ...

RTOMO documentation built on May 2, 2019, 3:35 p.m.