ISOSEISMALS: DISTRIBUTION OF APPARENT INTENSITY. 183 
somewhat more severe than at Ukiah. Booneville is a little more than halfway from Point 
Arena to Ukiah. ‘Ten miles southeast of Booneville on the Cloverdale road, a point a little 
nearer the Russian River Valley than Booneville, no damage to speak of was done, one chim- 
ney being slightly cracked. Sixteen miles southeast of Booneville, a little more than half- 
way between that place and Cloverdale, milk was thrown out of pans and houses badly 
shaken. Ata house a half mile away cream upon milk pans was not broken. On the moun- 
tain 5 miles west of Cloverdale there was no damage done. Two miles west of Cloverdale 
about half the chimneys were broken. The town itself does not seem to have suffered 
more than the average place along the road. Most of the chimneys were merely cracked and 
not thrown down. 
While there seems to have been great variation in the intensity of the shock in the sec- 
tions traversed, it is not clear that there was any increase in the intensity of the shock in the 
direction of the Russian River Valley at points between it and the coast. 
Supplementary to these notes by Mr. Fairbanks, Mr. John L. Prather, of Philo, reports 
that at that place chimneys were thrown down and broken off above the roof, and in 
some cases turned quarter way round, clockwise. Glassware and crockery were generally 
broken and much damage was done in stores and farmhouses. 
HEALDSBURG TO WILLETS. 
Healdsburg, Sonoma County. Population 1,870. (R.S. Holway.) — This place comes 
next to Santa Rosa in the extent of damage done to towns in Sonoma County. The 
shock was definitely less severe, however. The new 3-story brick building of the 
Odd Fellows Society is a total wreck, as are several other buildings, but many brick 
structures stood the shock without serious damage. The cemetery is on a low hill 
similar to that at Santa Rosa, and as at the latter place not over half the monuments 
fell. Of 35 square monuments of the same class, the direction of fall was as follows: 
north, 10; south, 11; east, 10; west, 3; southwest, 1. 
Along the bottom-land of the Russian River, cracks from an inch to a foot in width 
opened at several places. 
(H. R. Bull.) — The direction of the earthquake at Healdsburg seemed to be from north 
to south during the early stage of the disturbance. Following this was a decided pause 
attended by a quivering motion; then followed a vertical movement attended by a great 
rumbling noise like thunder; lastly, the distinct oscillatory movement which continued 
thruout. 
A piano with its back close against the north wall was shifted 2 feet almost directly 
toward the south. It was evidently lifted and rolled simultaneously, since the base- 
board of the piano was thrust out upon the floor ahead of the piano. A clock on a south 
wall was thrown 5 feet to the north, while a clock on a north wall was thrown to the 
south. Plastering on walls extending north and south was badly broken and scattered, 
while that of the ceiling and the walls extending east and west was only slightly injured. 
One chimney was hurled toward the east, another toward the south. North and south 
walls of a brick dwelling 40 feet north of the frame building above described were thrown 
toward the south. Furniture in this building was shifted also in a similar manner. 
Residents generally agree as to the general movement being from north to south. 
Fissures in the creek bed near the town are in evidence. Water was thrown out and 
continued to flow for several hours, at first with some considerable force; then it gradually 
diminished and finally disappeared. Brick buildings were generally injured and in some 
instances thrown down. (Plate 70a, B.) Many brick walls facing east and west were 
buckled either in or out, because of the movement from north to south of the north and 
south walls. Chimneys generally fell north or south. In some cases the oscillatory mo- 
tion caused chimneys which had withstood the north and south wave to fall in other 
directions. 
