Earthquake Information:

078 2018-04-15 10:11 (ML): 4.0 23.35N 120.71E, i.e. 44.6 km ESE of Chiayi County 


CWB EARTHQUAKE REPORT Earthquake No.: 107078 Origin time (Taiwan Standard Time: GMT+08:00): 4/15/2018 22:11:57.8 Location: 23.35N 120.71E, i.e. 44.6 km ESE of Chiayi County Depth : 5.0 km Magnitude(ML): 4.0 Intensity : Caoshan, Chiayi County 4 Dapu, Chiayi County 3 Chiayi City 3 Alishan, Chiayi County 2 Taoyuan, Kaohsiung City 2 Gukeng, Yunlin County 2 Liujiao, Chiayi County 2 Dongshan, Tainan City 1 Nanxi, Tainan City 1 Caoling, Yunlin County 1 Xinhua, Tainan City 1 Jiali, Tainan City 1 Douliu City, Yunlin County 1 Sihu, Yunlin County 1 Qigu, Tainan City 1 Changhua City, Changhua County 1

PS. The waveforms may exist interruption due to the quality of transmission.

強地動震波圖--點選放大(另開新視窗)
CHN4-E / 4
 
強地動震波圖--點選放大(另開新視窗)
CHY-E / 3
 
強地動震波圖--點選放大(另開新視窗)
WTP-E / 3
 
Origin Time:2018/04/15 22:11:57
Lon:120.71°E
Lat:23.35°N
Depth:5.0km
Mag:4.0
Stacode=CHN4,Staname=Caoshan           ,Stalon=120.59,Stalat=23.35,Dist=  12.17,AZ= 91.29,PGA(V)=  24.94,PGA(NS)=  23.81,PGA(EW)=  31.88
Stacode=WTP ,Staname=Dapu              ,Stalon=120.62,Stalat=23.24,Dist=  14.89,AZ= 38.55,PGA(V)=   1.85,PGA(NS)=   9.27,PGA(EW)=   8.49
Stacode=ALS ,Staname=Alishan           ,Stalon=120.81,Stalat=23.51,Dist=  20.42,AZ=210.13,PGA(V)=   0.96,PGA(NS)=   3.23,PGA(EW)=   1.85
Stacode=STY ,Staname=Taoyuan           ,Stalon=120.77,Stalat=23.16,Dist=  21.52,AZ=345.46,PGA(V)=   1.02,PGA(NS)=   3.47,PGA(EW)=   2.81
Stacode=TWL ,Staname=Dongshan          ,Stalon=120.50,Stalat=23.26,Dist=  23.52,AZ= 66.39,PGA(V)=   1.50,PGA(NS)=   1.20,PGA(EW)=   2.03
Stacode=CHN1,Staname=Nanxi             ,Stalon=120.53,Stalat=23.19,Dist=  26.18,AZ= 46.13,PGA(V)=   0.90,PGA(NS)=   1.44,PGA(EW)=   1.91
Stacode=CHN5,Staname=Caoling           ,Stalon=120.68,Stalat=23.60,Dist=  27.76,AZ=172.45,PGA(V)=   0.96,PGA(NS)=   1.62,PGA(EW)=   1.85
Stacode=CHY ,Staname=Chiayi City       ,Stalon=120.43,Stalat=23.50,Dist=  32.95,AZ=119.64,PGA(V)=   2.63,PGA(NS)=   8.20,PGA(EW)=   6.04
Stacode=WGK ,Staname=Gukeng            ,Stalon=120.57,Stalat=23.68,Dist=  39.93,AZ=158.60,PGA(V)=   1.08,PGA(NS)=   3.35,PGA(EW)=   1.97
Stacode=WDL ,Staname=Douliu City       ,Stalon=120.54,Stalat=23.72,Dist=  44.29,AZ=156.28,PGA(V)=   1.74,PGA(NS)=   2.27,PGA(EW)=   1.38
Stacode=CHN3,Staname=Xinhua            ,Stalon=120.36,Stalat=23.08,Dist=  46.76,AZ= 49.66,PGA(V)=   0.30,PGA(NS)=   0.96,PGA(EW)=   0.84
Stacode=CHN7,Staname=Liujiao           ,Stalon=120.24,Stalat=23.48,Dist=  50.63,AZ=107.11,PGA(V)=   1.38,PGA(NS)=   1.68,PGA(EW)=   2.63
Stacode=SCL ,Staname=Jiali             ,Stalon=120.20,Stalat=23.17,Dist=  55.80,AZ= 69.64,PGA(V)=   0.30,PGA(NS)=   0.96,PGA(EW)=   0.72
Stacode=WSF ,Staname=Sihu              ,Stalon=120.23,Stalat=23.64,Dist=  58.73,AZ=122.83,PGA(V)=   0.78,PGA(NS)=   2.09,PGA(EW)=   1.38
Stacode=SCK ,Staname=Qigu              ,Stalon=120.09,Stalat=23.15,Dist=  67.92,AZ= 70.77,PGA(V)=   0.30,PGA(NS)=   0.78,PGA(EW)=   1.14
Stacode=WCH ,Staname=Changhua City     ,Stalon=120.56,Stalat=24.08,Dist=  82.71,AZ=168.90,PGA(V)=   0.24,PGA(NS)=   0.96,PGA(EW)=   0.72

                    
 ********************************************************************
  Following is a moment-tensor solution derived from inversion of
  CWBSN_BB waveforms. An image file containing all the used waveforms
  and misfit distribution with respect to depth. 
  If you have any questions, please contact seismological center of CWB.
 ********************************************************************
  
 CWB Early Automatic Report (EAR) : 
 Origin Time : 2018  4 15 14:11:57.00 (UT)
 Hypocenter :   23.35 N  120.71 E    5.00 km
 ML :  4.00
                                                 
 CWBSN_BB moment-tensor solution :               
  -0.0025671   0.0053677  -0.0139360
   0.0053677  -0.0276371   0.0394043 x 1E+16 Nt-m
  -0.0139360   0.0394043   0.0302042
 Centroid depth :   4 km
 Mw :  3.74
 Azgap : 301.55
 Average MISFIT : 0.415  (The fit is good     )
  
 Best double couple solutions : 
 nodal plane(1) strike/dip/slip:   6.19/17.88/  78.81
 nodal plane(2) strike/dip/slip: 197.94/72.47/  93.58
  
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Please install Google Earth in advance, and download the KMZ file. Users can display earthquake report in Google Earth interface.
KMZ file includes of earthquake parameters, the contour figure, and realtime waveform figures of stations.