Earthquake and tilt data for the 2019 Hakone swarm activity

The catalog for the earthquake swarms and repeating earthquakes during the 2019 Hakone swarm activity, information of focal mechanisms and temporal sequence of tilt data are available in this page. Hypocenters.dat:Hypocenters of earthquakes estimated by the double difference method (Waldhauser and Ellsworth, 2000) and Matched filter analysis. The file format is same as that of output file by hypoDD code that is described in the hypoDD user's manual (https://www.ldeo.columbia.edu/~felixw/papers/Waldhauser_OFR2001.pdf). The origin time is described by using JST = UT +8h. Repeater.dat:Hypocenters of each repeater group. The file format is same as that of "Hypocenters.dat". Focal_mechanisms.dat:Source parameters of each focal mechanism are listed in order of origin time (year month day hour minute sec, JST = UT + 8h), hypocenter location (latitude longitude depth), magnitude, azimuth and plunge (angle from horizonal to up-vertical) of P axis, azimuth and plunge of B axis, azimuth and plunge of T axis, strike, dip rake angles of nodal plane, strike dip, rake angles of the other nodal plane and error of focal mechanism (degree). Tilt_select.dat:Time sequence of tilt changes in order of time (JST=UT+8h), tilt data removing the linear trend corresponding to a long-term drift and the tidal component and the response to atmospheric pressure changes, raw tilt data, station name, component name. ReferenceWaldhauser, F., Ellsworth, W.L., 2000. A Double-Difference Earthquake Location Algorithm: Method and Application to the Northern Hayward Fault, California. Bull. Seismol. Soc. Am. 90, 1353-1368, doi:10.1785/0120000006.