Date 



2/II 

 2/II 



2/1 1 

 3 11 



6/II 



7,11 



8/1 1 



6/1 1 

 to 

 8/II 



( 412 ) 



A. Composition of the earth-quakes of the Minahassa during the first 

 iialf year of 1901, 1906, and 1907; in tiie main from flie records in 

 the Natuurkundig' Tijdschrift voor Nederlaiidsch-Indië. 



Time of 

 Batavia 



Place of 



observation 



Observer or 

 reporter 



Dura- 

 tion 

 in sec. 



Direction 



Particulars 



FIRST HALF YEAR OF 1901, 



4h49ni 

 >3h 49 m 



Oh ISm 

 Oh 24 m 

 Oil 3m 

 I Oh 22,3 m 

 12h 18m 



to 



22h48m 



12'! 19'" 

 + 12h 



Oh 47m 

 4h 18m 



Id. 



4h38m 



4h 47m Menado Koperber 



Kelelondei 



Kelelondei 



Tomohon 



Tondano 



Masarang 



Tontoli 3) 



Batavia 



Tomohon 



Tomohon 



Tomohon , „ 

 Kelelondei Veen 



Veen 



Limburg 



Government 



Goedbloed 



Government 



Observatory 



Limburg 



60 



+ 30 



One single shock. 



SWb.S/NEb.N \ Horizontal; important; little 

 damage. 



SWNE 



E/W ) 

 ESE/WNW 



S/N 



SWb.S/NEb.N. 



SW/NE 



Mostly 

 vertical 



Rather violent 



Rather strong ; more verti- 

 cal than horizontal ') 



Long vibrating motion. 



Rather strong; of long dura- 

 tion ; undulating. 



Rather strong ; of long dura- 

 tion ; undulating. 



Horizontal. 



Light shock. 



Seismogr. Milne; beginning. 



Almost uninterrupted move- 

 ment. Twenty separately 

 observable shocks, some 

 rather strong. 



After 2 o'clock at night (loc. 

 t. ?) the phenomena (comp. 

 under 6 11) gradually abate. 



Only a few tremors more. 



Heavy continuous jolts, all 

 vertical ; often accompanied 

 by subterranean rumbling. 



1) "A very complicate earth- quake; a series of almost uninterrupted upward and sideways 

 shocks, occasionally an oscillating movement from N. to S." (Limburg). 



2) According to the slight but distinct oscillations of the lamps. 



3) Besides Batavia also some other places outside the Minahassa, where the earth-quakes were 

 observed, are inserted into the composition. 



