INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of Mwp 6.4 on date 02-04-2018 and time 15:40:33 (Italy) in region Southern Bolivia [Land: Bolivia]

A magnitude Mwp 6.4 earthquake occured in region: Southern Bolivia [Land: Bolivia], on

  • 02-04-2018 13:40:33 (UTC)
  • 02-04-2018 15:40:33 (UTC +02:00) Italian time
  • 02-04-2018 10:40:33 (UTC -03:00) local time in the region of the earthquake (America/Argentina/Jujuy)

and geographic coordinates (lat, lon) -20.56, -63.02 at 553 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.

Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 mb 5.8
Mwp 6.4

Mwpd 6.6
2018-04-02
13:40:33
-20.56 -63.03 553 2018-04-02
13:55:49
Sala Sismica INGV-Roma 55046501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-04-02 13:40:33
Latitude -20.56
Longitude -63.03
Depth (km) 553 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 55046501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 6646
Semi-minor axis of confidence ellipse (meter) 5703
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 107
Circular confidence region, given by single value of horizontal uncertainty (meter) 6513.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 51.4318
Number of associated phases, regardless of their use for origin computation 171
Number of defining phases 171
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.3964
Epicentral distance of station closest to the epicenter (degree) 5.84792
Epicentral distance of station farthest from the epicenter (degree) 80.31226
Number of stations at which the event was observed 119
Number of stations from which data was used for origin computation 119
Magnitudes information

Mwpd:6.6

Field Value
Value 6.6
Uncertainty 0.1
Num. used stations 68
Type of magnitude Mwpd
Reference to an origin 55046501
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-04-02 13:55:49

Mwp:6.4

Field Value
Value 6.4
Uncertainty 0.2
Num. used stations 81
Type of magnitude Mwp
Reference to an origin 55046501
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-04-02 13:55:49

mb:5.8

Field Value
Value 5.8
Uncertainty 0.2
Num. used stations 85
Type of magnitude mb
Reference to an origin 55046501
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-04-02 13:55:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
US.EGMT.BHZ.00 2018-04-02T13:51:46.75 10.0 negative automatic P 330 80.3123 -0.573033 0.168039
US.HLID.BHZ.00 2018-04-02T13:51:44.48 10.0 negative automatic P 325 79.5436 1.04535 0.181385
GE.MTE.BHZ. 2018-04-02T13:51:44.80 10.0 positive automatic P 40 79.8302 0.0278221 0
US.BOZ.BHZ.00 2018-04-02T13:51:43.08 10.0 positive automatic P 328 79.4888 -0.03712 0.184128
US.ELK.BHZ.00 2018-04-02T13:51:36.93 10.0 positive automatic P 322 78.1389 0.874855 0.197438
US.DGMT.BHZ.00 2018-04-02T13:51:36.68 10.0 positive automatic P 334 78.1991 0.570971 0
WM.SFS.BHZ. 2018-04-02T13:51:37.90 10.0 negative automatic P 43 78.2597 1.57635 0.154719
US.RLMT.BHZ.00 2018-04-02T13:51:35.28 10.0 negative automatic P 329 77.9843 0.0725501 0.194254
US.LKWY.BHZ.00 2018-04-02T13:51:37.63 10.0 positive automatic P 328 78.1457 1.50128 0.18819
US.LAO.BHZ.00 2018-04-02T13:51:33.33 10.0 positive automatic P 331 77.7138 -0.214719 0.201726
IU.SBA.BHZ.00 2018-04-02T13:51:35.07 10.0 positive automatic P 189 77.5225 2.7093 0.198821
US.AHID.BHZ.00 2018-04-02T13:51:31.58 10.0 positive automatic P 326 77.236 0.435067 0.2066
US.HWUT.BHZ.00 2018-04-02T13:51:28.38 10.0 negative automatic P 325 76.6764 0.308286 0
US.DUG.BHZ.00 2018-04-02T13:51:27.45 10.0 positive automatic P 323 76.3963 0.974795 0.212712
US.BW06.BHZ.00 2018-04-02T13:51:26.95 10.0 positive automatic P 327 76.4368 0.123201 0.214882
WM.AVE.BHZ. 2018-04-02T13:51:22.45 10.0 negative automatic P 45 75.5635 0.783013 0.218784
NN.PRN.HHZ. 2018-04-02T13:51:25.28 10.0 positive automatic P 320 75.8532 1.7978 0.222118
CN.SCHQ.BHZ. 2018-04-02T13:51:19.85 10.0 negative automatic P 358 75.4554 -1.26249 0.217326
US.AGMN.BHZ.00 2018-04-02T13:51:16.63 10.0 negative automatic P 338 74.8539 -1.11081 0.22625
IU.RSSD.BHZ.00 2018-04-02T13:51:16.87 10.0 positive automatic P 331 74.7626 -0.654926 0.207461
US.EYMN.BHZ.00 2018-04-02T13:51:06.05 10.0 negative automatic P 341 73.1017 -1.79784 0.245224
IW.SMCO.BHZ.00 2018-04-02T13:51:05.95 10.0 positive automatic P 326 72.4934 1.07934 0.255025
US.WUAZ.BHZ.00 2018-04-02T13:51:05.38 10.0 positive automatic P 320 72.3877 1.42798 0.256225
US.ISCO.BHZ.00 2018-04-02T13:51:03.95 10.0 positive automatic P 327 72.2463 0.622289 0.260978
US.MVCO.BHZ.00 2018-04-02T13:51:02.08 10.0 positive automatic P 323 71.8911 0.906051 0.261897
C1.MG02.BHZ. 2018-04-02T13:50:59.70 10.0 positive automatic S 187 32.5776 2.37929 0
US.OGNE.BHZ.00 2018-04-02T13:50:58.08 10.0 positive automatic P 330 71.366 0.147992 0.261658
US.SDCO.BHZ.00 2018-04-02T13:50:54.60 10.0 negative automatic P 326 70.6588 0.561514 0.276241
CN.DRLN.BHZ. 2018-04-02T13:50:48.40 10.0 negative automatic P 4 69.9817 -1.232 0
US.COWI.BHZ.00 2018-04-02T13:50:52.83 10.0 positive automatic P 341 70.7291 -1.27551 0.275413
IU.TUC.BHZ.00 2018-04-02T13:50:49.92 10.0 positive automatic P 318 69.857 0.907607 0.282377
IU.ANMO.BHZ.00 2018-04-02T13:50:45.32 10.0 positive automatic P 323 69.1281 0.506141 0.298184
PM.PMOZ.BHZ. 2018-04-02T13:50:44.16 10.0 positive automatic P 40 69.022 0.114824 0.279073
US.CBKS.BHZ.00 2018-04-02T13:50:41.30 10.0 negative automatic P 330 68.6028 -0.155473 0.301023
US.SCIA.BHZ.00 2018-04-02T13:50:38.18 10.0 positive automatic P 336 68.4166 -2.09754 0.239767
US.GLMI.BHZ.00 2018-04-02T13:50:38.18 10.0 negative automatic P 344 68.282 -1.29485 0.301355
US.JFWS.BHZ.00 2018-04-02T13:50:37.63 10.0 negative automatic P 339 68.2377 -1.56866 0.288175
MX.SRIG.BHZ. 2018-04-02T13:50:36.06 10.0 positive automatic P 313 67.5238 1.2563 0
PM.ROSA.BHZ. 2018-04-02T13:50:36.35 10.0 positive automatic P 29 67.6388 0.793334 0.295225
CN.GAC.BHZ. 2018-04-02T13:50:31.90 10.0 positive automatic P 351 67.2156 -1.01769 0.326205
CN.SADO.BHZ. 2018-04-02T13:50:29.75 10.0 negative automatic P 348 66.959 -1.62507 0.321602
US.AMTX.BHZ.00 2018-04-02T13:50:27.98 10.0 positive automatic P 326 66.4815 -0.588345 0.331706
US.MNTX.BHZ.00 2018-04-02T13:50:25.50 10.0 positive automatic P 321 66.156 -0.941337 0.331903
US.LONY.BHZ.00 2018-04-02T13:50:24.73 10.0 positive automatic P 351 66.0229 -0.896757 0.337695
US.PKME.BHZ.00 2018-04-02T13:50:24.90 10.0 negative automatic P 355 66.0644 -0.922269 0.333088
US.HDIL.BHZ.00 2018-04-02T13:50:22.08 10.0 negative automatic P 338 65.8152 -2.22109 0.303423
US.AAM.BHZ.00 2018-04-02T13:50:21.95 10.0 negative automatic P 343 65.6793 -1.48756 0.318885
US.LBNH.BHZ.00 2018-04-02T13:50:20.45 10.0 positive automatic P 353 65.3035 -0.672421 0.33105
US.ERPA.BHZ.00 2018-04-02T13:50:15.93 10.0 negative automatic P 346 64.6031 -0.783758 0.348091
US.WMOK.BHZ.00 2018-04-02T13:50:17.45 10.0 positive automatic P 328 64.888 -1.08564 0.348498
IU.CCM.BHZ.00 2018-04-02T13:50:12.97 10.0 negative automatic P 336 64.3259 -1.9786 0.351748
IU.SLBS.BHZ.00 2018-04-02T13:50:11.87 10.0 positive automatic P 312 63.5984 1.44054 0.345009
US.BINY.BHZ.00 2018-04-02T13:50:11.55 10.0 negative automatic P 349 63.8855 -0.650144 0.357598
IU.HRV.BHZ.00 2018-04-02T13:50:09.12 10.0 positive automatic P 353 63.5495 -0.888528 0.362095
US.ACSO.BHZ.00 2018-04-02T13:50:08.68 10.0 negative automatic P 343 63.5661 -1.45477 0.370698
MX.HPIG.BHZ. 2018-04-02T13:50:06.68 10.0 positive automatic P 317 62.9316 0.35625 0.370436
IU.SSPA.BHZ.00 2018-04-02T13:50:04.12 10.0 negative automatic P 347 62.732 -0.661413 0.377646
IU.WCI.BHZ.00 2018-04-02T13:50:02.42 10.0 negative automatic P 340 62.7115 -2.21958 0.373431
IU.PTCN.BHZ.00 2018-04-02T13:50:00.23 10.0 positive automatic P 252 61.3632 3.87367 0.387424
US.MIAR.BHZ.00 2018-04-02T13:50:00.53 10.0 positive automatic P 332 62.2831 -1.34808 0.388544
US.JCT.BHZ.00 2018-04-02T13:50:00.33 10.0 positive automatic P 324 62.0773 -0.278654 0.38673
US.MCWV.BHZ.00 2018-04-02T13:50:00.95 10.0 negative automatic P 345 62.2274 -0.574757 0.38006
GE.SNAA.BHZ. 2018-04-02T13:49:56.11 10.0 negative automatic P 162 61.3315 0.315901 0.392479
IU.WVT.BHZ.00 2018-04-02T13:49:53.50 10.0 negative automatic P 337 61.347 -2.28583 0.396989
US.OXF.BHZ.00 2018-04-02T13:49:48.15 10.0 negative automatic P 335 60.5093 -2.12103 0.394657
US.CBN.BHZ.00 2018-04-02T13:49:47.73 10.0 negative automatic P 347 60.2835 -1.05077 0.388749
US.TZTN.BHZ.00 2018-04-02T13:49:47.20 10.0 negative automatic P 341 60.2992 -1.7348 0.379902
US.BLA.BHZ.00 2018-04-02T13:49:46.45 10.0 negative automatic P 344 60.0466 -0.854791 0.405811
IU.HKT.BHZ.00 2018-04-02T13:49:44.37 10.0 negative automatic P 327 59.5726 0.3917 0.422475
US.KVTX.BHZ.00 2018-04-02T13:49:39.53 10.0 positive automatic P 324 58.7476 0.988589 0.434593
US.VBMS.BHZ.00 2018-04-02T13:49:39.18 10.0 negative automatic P 333 58.9666 -0.82876 0.43136
MX.ZAIG.BHZ. 2018-04-02T13:49:35.02 10.0 positive automatic P 316 57.9986 1.11144 0.440438
US.LRAL.BHZ.00 2018-04-02T13:49:33.80 10.0 negative automatic P 336 58.2772 -1.5944 0.452483
US.CNNC.BHZ.00 2018-04-02T13:49:29.28 10.0 negative automatic P 346 57.5477 -1.1617 0.441879
G.MBO.BHZ.00 2018-04-02T13:49:29.20 10.0 positive automatic P 56 57.181 1.26164 0.452626
US.GOGA.BHZ.00 2018-04-02T13:49:28.03 10.0 negative automatic P 340 57.3796 -1.28368 0.41055
MX.MOIG.BHZ. 2018-04-02T13:49:13.40 10.0 positive automatic P 315 54.9042 0.818827 0.487441
II.SHEL.BHZ.00 2018-04-02T13:49:11.22 10.0 positive automatic P 95 54.3246 2.95 0.453334
II.SACV.BHZ.00 2018-04-02T13:48:55.52 10.0 positive automatic P 51 52.5448 -0.12831 0.537682
MX.TLIG.BHZ. 2018-04-02T13:48:50.36 10.0 positive automatic P 315 51.6505 0.999046 0.539431
IU.DWPF.BHZ.00 2018-04-02T13:48:49.97 10.0 negative automatic P 339 51.8137 -0.379361 0.549852
IU.TEIG.BHZ.00 2018-04-02T13:48:18.85 10.0 positive automatic P 327 47.6798 -1.19164 0.62124
G.TRIS.BHZ.00 2018-04-02T13:48:15.95 10.0 positive automatic P 122 46.7819 2.63857 0.121535
IU.PMSA.BHZ.00 2018-04-02T13:47:55.12 10.0 negative automatic P 181 44.2219 1.3273 0.668007
C1.VA02.BHZ. 2018-04-02T13:47:45.55 10.0 negative automatic P 252 42.7168 3.43799 0.695728
II.RPN.BHZ.00 2018-04-02T13:47:44.62 10.0 positive automatic P 252 42.6286 3.18474 0.681151
CU.GRTK.BHZ.00 2018-04-02T13:47:41.88 10.0 negative automatic P 349 42.8047 -0.916457 0.702455
CU.TGUH.BHZ.00 2018-04-02T13:47:36.33 10.0 positive automatic P 323 42.021 -0.52959 0.726021
CU.GTBY.BHZ.00 2018-04-02T13:47:36.30 10.0 negative automatic P 343 42.1736 -1.56764 0.714376
CU.SDDR.BHZ.00 2018-04-02T13:47:21.83 10.0 negative automatic P 348 40.3563 -1.75441 0.758399
GE.BOAB.BHZ. 2018-04-02T13:47:19.55 10.0 positive automatic P 324 39.8091 0.368961 0.733419
II.HOPE.BHZ.00 2018-04-02T13:47:15.02 10.0 negative automatic P 156 39.2751 0.190372 0.761241
II.JTS.BHZ.00 2018-04-02T13:47:01.97 10.0 positive automatic P 323 37.6352 0.36076 0.757424
C.GO05.BHZ. 2018-04-02T13:46:43.08 10.0 positive automatic S 207 16.4419 0.801926 0
G.FDF.BHZ.00 2018-04-02T13:46:41.10 10.0 positive automatic P 3 35.3375 -1.63907 0.860288
CU.BBGH.BHZ.00 2018-04-02T13:46:32.08 10.0 negative automatic P 6 33.8696 1.62668 0.870081
CU.BCIP.BHZ.00 2018-04-02T13:46:31.53 10.0 negative automatic P 329 34.0096 -0.0758098 0.888321
IU.PAYG.BHZ.00 2018-04-02T13:46:27.92 10.0 positive automatic P 303 33.236 2.78047 0.883316
C.GO10.BHZ. 2018-04-02T13:46:26.25 10.0 negative automatic P 189 33.1773 1.53826 0.884545
C1.MG02.BHZ. 2018-04-02T13:46:20.40 10.0 negative automatic P 187 32.5776 0.853959 0.919056
CU.GRGR.BHZ.00 2018-04-02T13:46:20.80 10.0 negative automatic P 2 32.7147 0.0719397 0.916092
G.PEL.BHZ.00 2018-04-02T13:46:08.00 10.0 positive automatic S 207 14.3063 2.65716 0
IU.RCBR.BHZ.00 2018-04-02T13:46:01.02 10.0 negative automatic P 65 30.1503 2.13158 0.949193
C1.CO02.BHZ. 2018-04-02T13:45:38.05 10.0 negative automatic S 212 12.8287 0.341041 0
C.GO04.BHZ. 2018-04-02T13:45:27.45 10.0 positive automatic S 215 11.9 6.99311 0
G.COYC.BHZ.00 2018-04-02T13:45:23.05 10.0 positive automatic P 195 26.1009 -0.535246 0.869565
IU.LCO.BHZ.00 2018-04-02T13:45:03.82 10.0 positive automatic S 218 10.9489 1.24342 0
C1.LL02.BHZ. 2018-04-02T13:45:02.55 10.0 negative automatic P 196 23.8076 -0.79839 0.987654
C1.LL01.BHZ. 2018-04-02T13:44:56.63 10.0 positive automatic P 198 23.2078 -1.34964 0.930233
GT.PLCA.BHZ.00 2018-04-02T13:44:38.80 10.0 negative automatic P 196 21.1679 -1.11155 0.952381
C.GO03.BHZ. 2018-04-02T13:44:35.28 10.0 positive automatic S 222 9.6309 -2.14274 0
C.GO06.BHZ. 2018-04-02T13:44:31.80 10.0 positive automatic P 199 20.358 -0.840081 0.963855
C1.VA04.BHZ. 2018-04-02T13:44:22.08 10.0 positive automatic P 224 19.1673 0.428563 0.898876
C.GO02.BHZ. 2018-04-02T13:44:01.68 10.0 negative automatic S 231 7.6012 0.919761 0
C.GO05.BHZ. 2018-04-02T13:43:55.30 10.0 negative automatic P 207 16.4419 -1.43435 0.952381
C1.BO02.BHZ. 2018-04-02T13:43:49.60 10.0 negative automatic P 204 15.7917 -1.25949 0.952381
G.SPB.BHZ.00 2018-04-02T13:43:39.45 10.0 positive automatic P 105 14.761 -0.891547 0.930233
G.PEL.BHZ.00 2018-04-02T13:43:34.65 10.0 negative automatic P 207 14.3063 -1.03226 0.952381
GE.LVC.BHZ.00 2018-04-02T13:43:24.07 10.0 negative automatic S 248 5.8479 -6.57308 0
C1.CO02.BHZ. 2018-04-02T13:43:19.45 10.0 negative automatic P 212 12.8287 -1.09617 0.941176
C.GO04.BHZ. 2018-04-02T13:43:10.73 10.0 negative automatic P 215 11.9 -0.388469 0.930233
IU.SAML.BHZ.00 2018-04-02T13:43:09.37 10.0 positive automatic P 359 11.6075 1.61067 0.869565
IU.LCO.BHZ.00 2018-04-02T13:43:01.42 10.0 negative automatic P 218 10.9489 0.0742634 0.930233
C.GO03.BHZ. 2018-04-02T13:42:47.43 10.0 negative automatic P 222 9.6309 -0.152979 0.963855
GT.CPUP.BHZ.00 2018-04-02T13:42:29.30 10.0 positive automatic P 139 7.7843 0.334922 0.97561
C.GO02.BHZ. 2018-04-02T13:42:26.78 10.0 negative automatic P 231 7.6012 -0.818108 0.952381
GT.LPAZ.BHZ.00 2018-04-02T13:42:18.83 10.0 positive automatic P 311 6.4543 1.80298 0.930233
GE.LVC.BHZ.00 2018-04-02T13:42:11.17 10.0 positive automatic P 248 5.8479 0.0271314 0.930233
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download