INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of Mwp 6.2 on date 18-08-2018 and time 01:22:26 (Italy) in region Costa Rica

A magnitude Mwp 6.2 earthquake occured in region: Costa Rica, on

  • 17-08-2018 23:22:26 (UTC)
  • 18-08-2018 01:22:26 (UTC +02:00) Italian time
  • 17-08-2018 17:22:26 (UTC -06:00) local time in the region of the earthquake (America/Costa_Rica)

and geographic coordinates (lat, lon) 8.69, -83.18 at 35 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 5.4
Mwp 6.2

Mwpd 6.2
2018-08-17
23:22:26
8.69 -83.18 35 2018-08-17
23:50:58
Sala Sismica INGV-Roma 59879561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-17 23:22:26
Latitude 8.69
Longitude -83.18
Depth (km) 35 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 59879561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 7654
Semi-minor axis of confidence ellipse (meter) 1725
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 216
Circular confidence region, given by single value of horizontal uncertainty (meter) 6284.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84.754
Number of associated phases, regardless of their use for origin computation 115
Number of defining phases 115
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.16979
Epicentral distance of station closest to the epicenter (degree) 1.60637
Epicentral distance of station farthest from the epicenter (degree) 55.16547
Number of stations at which the event was observed 115
Number of stations from which data was used for origin computation 115
Magnitudes information

Mwpd:6.2

Field Value
Value 6.2
Uncertainty 0.1
Num. used stations 94
Type of magnitude Mwpd
Reference to an origin 59879561
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-08-17 23:50:58

Mwp:6.2

Field Value
Value 6.2
Uncertainty 0.1
Num. used stations 102
Type of magnitude Mwp
Reference to an origin 59879561
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-08-17 23:50:58

mb:5.4

Field Value
Value 5.4
Uncertainty 0.1
Num. used stations 107
Type of magnitude mb
Reference to an origin 59879561
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-08-17 23:50:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
G.COYC.BHZ.00 2018-08-17T23:31:53.55 10.0 positive automatic P 171 55.1655 0.000459544 0.268878
C1.LL02.BHZ. 2018-08-17T23:31:36.45 10.0 positive automatic P 170 52.8909 -1.65167 0.286004
US.NLWA.BHZ.00 2018-08-17T23:31:30.50 10.0 positive automatic P 326 51.7856 -0.899156 0.50531
GT.PLCA.BHZ.00 2018-08-17T23:31:20.55 10.0 positive automatic P 168 50.7705 -0.84056 0.321098
IU.COR.BHZ.00 2018-08-17T23:31:15.62 10.0 positive automatic P 323 49.8823 -1.44119 0.373466
IU.RCBR.BHZ.00 2018-08-17T23:31:11.52 10.0 positive automatic P 105 49.3129 -0.30768 0.352517
C.GO06.BHZ. 2018-08-17T23:31:10.93 10.0 positive automatic P 168 49.4737 -1.69592 0.33431
US.HAWA.BHZ.00 2018-08-17T23:31:06.58 10.0 positive automatic P 327 48.8161 -1.43706 0.558051
US.NEW.BHZ.00 2018-08-17T23:31:06.38 10.0 positive automatic P 330 48.804 -1.03717 0.56288
BK.HUMO.BHZ.00 2018-08-17T23:31:04.75 10.0 positive automatic P 321 48.5922 -1.78651 0.531147
BK.MCCM.BHZ.00 2018-08-17T23:30:49.07 10.0 positive automatic P 316 46.2563 0.599057 0.519055
US.BMO.BHZ.00 2018-08-17T23:30:49.05 10.0 positive automatic P 327 46.6349 -1.61259 0.528898
US.MSO.BHZ.00 2018-08-17T23:30:46.90 10.0 positive automatic P 331 46.2643 -0.875093 0.575
CN.DRLN.BHZ. 2018-08-17T23:30:44.83 10.0 positive automatic P 23 45.8961 -0.0424856 0.402178
US.WVOR.BHZ.00 2018-08-17T23:30:44.78 10.0 positive automatic P 323 45.8772 -0.509386 0.546457
US.EGMT.BHZ.00 2018-08-17T23:30:39.38 10.0 positive automatic P 335 45.2844 -0.631322 0.453042
BK.SAO.BHZ.00 2018-08-17T23:30:35.50 10.0 positive automatic P 315 44.5899 -0.199687 0.454936
C.GO05.BHZ. 2018-08-17T23:30:35.48 10.0 positive automatic P 167 44.9696 -1.93133 0.19565
BK.CMB.BHZ.00 2018-08-17T23:30:34.55 10.0 positive automatic P 317 44.5057 -0.0648097 0.477452
US.HLID.BHZ.00 2018-08-17T23:30:31.45 10.0 positive automatic P 327 44.2278 -0.260766 0.319845
US.BOZ.BHZ.00 2018-08-17T23:30:31.68 10.0 positive automatic P 331 44.2703 -0.345633 0.128744
US.DGMT.BHZ.00 2018-08-17T23:30:25.15 10.0 positive automatic P 340 43.5409 -0.851847 0.452083
G.PEL.BHZ.00 2018-08-17T23:30:25.15 10.0 positive automatic P 165 43.4881 0.0795444 0.432684
US.LKWY.BHZ.00 2018-08-17T23:30:21.68 10.0 positive automatic P 331 42.9227 0.35937 0.402947
US.ELK.BHZ.00 2018-08-17T23:30:20.68 10.0 positive automatic P 324 42.8362 0.0974023 0.633886
GT.CPUP.BHZ.00 2018-08-17T23:30:20.00 10.0 positive automatic P 145 43.0819 -0.972533 0.67045
US.RLMT.BHZ.00 2018-08-17T23:30:19.40 10.0 positive automatic P 333 42.8215 -1.03712 0.604293
US.LAO.BHZ.00 2018-08-17T23:30:18.83 10.0 positive automatic P 337 42.786 -1.12064 0.542449
CN.ULM.BHZ. 2018-08-17T23:30:18.15 10.0 positive automatic P 348 42.8796 -1.14965 0.710817
WA.ZON.HHZ. 2018-08-17T23:30:17.72 10.0 positive automatic P 162 42.5535 -0.319454 0.236709
US.AHID.BHZ.00 2018-08-17T23:30:12.35 10.0 positive automatic P 329 41.9442 -0.93047 0.484675
C1.CO02.BHZ. 2018-08-17T23:30:09.35 10.0 positive automatic P 164 41.5594 -0.64965 0.1212
US.HWUT.BHZ.00 2018-08-17T23:30:07.93 10.0 positive automatic P 327 41.3608 -0.556522 0.601397
US.BW06.BHZ.00 2018-08-17T23:30:06.03 10.0 positive automatic P 330 41.1753 -1.00343 0.1774
NN.PRN.HHZ. 2018-08-17T23:30:04.08 10.0 positive automatic P 320 40.6597 0.398781 0.633707
US.AGMN.BHZ.00 2018-08-17T23:30:03.48 10.0 positive automatic P 347 41.0303 -2.03831 0.746948
IU.RSSD.BHZ.00 2018-08-17T23:29:55.22 10.0 positive automatic P 336 39.7994 -0.335933 0.376272
II.PFO.BHZ.00 2018-08-17T23:29:54.87 10.0 positive automatic P 314 39.4771 1.27155 0.761856
IU.LCO.BHZ.00 2018-08-17T23:29:53.07 10.0 positive automatic P 163 39.5697 0.153289 0.499909
US.EYMN.BHZ.00 2018-08-17T23:29:53.70 10.0 positive automatic P 351 39.8839 -2.35652 0.766978
US.PKME.BHZ.00 2018-08-17T23:29:45.33 10.0 positive automatic P 16 38.4876 0.998524 0.823951
US.COWI.BHZ.00 2018-08-17T23:29:36.28 10.0 positive automatic P 353 37.7596 -1.99426 0.807888
US.WUAZ.BHZ.00 2018-08-17T23:29:34.65 10.0 positive automatic P 320 37.1669 0.258837 0.738389
IW.SMCO.BHZ.00 2018-08-17T23:29:33.67 10.0 positive automatic P 329 37.1956 -0.779576 0.737351
US.LBNH.BHZ.00 2018-08-17T23:29:31.53 10.0 positive automatic P 13 36.8712 0.811441 0.783766
US.ISCO.BHZ.00 2018-08-17T23:29:31.50 10.0 positive automatic P 331 36.9961 -0.681133 0.376078
US.ECSD.BHZ.00 2018-08-17T23:29:29.30 10.0 positive automatic P 344 36.9513 -2.1042 0.87574
US.LONY.BHZ.00 2018-08-17T23:29:28.40 10.0 positive automatic P 10 36.6952 -0.826565 0.787417
US.MVCO.BHZ.00 2018-08-17T23:29:28.30 10.0 positive automatic P 325 36.572 -0.176174 0.712723
C.GO02.BHZ. 2018-08-17T23:29:25.93 10.0 positive automatic P 159 36.3431 -0.664307 0.6649
US.OGNE.BHZ.00 2018-08-17T23:29:25.78 10.0 positive automatic P 336 36.3322 -0.463653 0.681072
CN.SADO.BHZ. 2018-08-17T23:29:24.48 10.0 positive automatic P 5 36.2495 0.026522 0.794494
US.GLMI.BHZ.00 2018-08-17T23:29:23.23 10.0 positive automatic P 358 36.1573 -1.40533 0.901847
IU.HRV.BHZ.00 2018-08-17T23:29:18.22 10.0 positive automatic P 15 35.3252 0.17214 0.788278
US.SDCO.BHZ.00 2018-08-17T23:29:17.78 10.0 positive automatic P 329 35.3582 -0.38522 0.738037
IU.TUC.BHZ.00 2018-08-17T23:29:14.25 10.0 positive automatic P 317 34.8062 0.435371 0.353832
US.JFWS.BHZ.00 2018-08-17T23:29:11.03 10.0 positive automatic P 351 34.7827 -1.78849 0.819188
GE.LVC.BHZ.00 2018-08-17T23:29:09.02 10.0 positive automatic P 156 34.2805 0.0817548 0.680902
US.SCIA.BHZ.00 2018-08-17T23:29:08.63 10.0 positive automatic P 347 34.3785 -0.688288 0.70037
US.BINY.BHZ.00 2018-08-17T23:29:07.75 10.0 positive automatic P 10 34.1037 0.781891 0.515166
IU.ANMO.BHZ.00 2018-08-17T23:29:03.75 10.0 positive automatic P 324 33.8145 -1.27683 0.141851
US.AAM.BHZ.00 2018-08-17T23:29:02.23 10.0 positive automatic P 359 33.6153 -0.44328 0.732538
US.ERPA.BHZ.00 2018-08-17T23:29:01.98 10.0 positive automatic P 4 33.5467 -0.116957 0.806599
MX.SRIG.BHZ. 2018-08-17T23:29:01.25 10.0 positive automatic P 308 33.1752 2.43776 0.83299
US.CBKS.BHZ.00 2018-08-17T23:29:01.28 10.0 positive automatic P 336 33.5942 -0.973832 0.996811
US.KSU1.BHZ.00 2018-08-17T23:28:53.20 10.0 positive automatic P 341 32.7099 -0.459904 0.782654
IU.SSPA.BHZ.00 2018-08-17T23:28:51.87 10.0 positive automatic P 8 32.2914 0.962243 0.822196
US.ACSO.BHZ.00 2018-08-17T23:28:44.23 10.0 positive automatic P 0 31.5439 -0.330668 0.990501
US.MCWV.BHZ.00 2018-08-17T23:28:41.53 10.0 positive automatic P 5 31.1124 0.772013 1.14805
US.AMTX.BHZ.00 2018-08-17T23:28:39.83 10.0 positive automatic P 330 31.1991 -1.82156 1.11705
US.MNTX.BHZ.00 2018-08-17T23:28:38.03 10.0 positive automatic P 321 30.9006 -0.884973 1.20883
G.MPG.BHZ.00 2018-08-17T23:28:37.00 10.0 positive automatic P 95 30.5093 1.5346 1.13572
IU.CCM.BHZ.00 2018-08-17T23:28:32.12 10.0 positive automatic P 347 30.2553 0.130385 1.1983
US.CBN.BHZ.00 2018-08-17T23:28:31.83 10.0 positive automatic P 9 29.9759 1.14259 1.26382
IU.SLBS.BHZ.00 2018-08-17T23:28:30.77 10.0 positive automatic P 304 29.6652 1.02159 0.991995
IU.WCI.BHZ.00 2018-08-17T23:28:27.42 10.0 positive automatic P 355 29.6738 0.0794539 1.20388
US.WMOK.BHZ.00 2018-08-17T23:28:26.28 10.0 positive automatic P 334 29.7181 -1.45327 1.06789
IU.BBSR.BHZ.00 2018-08-17T23:28:25.17 10.0 positive automatic P 33 29.2222 0.488121 0.833333
GT.LPAZ.BHZ.00 2018-08-17T23:28:22.43 10.0 positive automatic P 149 29.0759 -0.493822 1.11211
US.BLA.BHZ.00 2018-08-17T23:28:19.88 10.0 positive automatic P 5 28.6319 1.00746 1.32485
MX.HPIG.BHZ. 2018-08-17T23:28:14.60 10.0 positive automatic P 313 28.0304 0.552995 1.03393
US.TZTN.BHZ.00 2018-08-17T23:28:12.25 10.0 positive automatic P 359 27.8577 0.325815 1.29778
IU.WVT.BHZ.00 2018-08-17T23:28:10.12 10.0 positive automatic P 352 27.7669 0.116021 0.952381
US.MIAR.BHZ.00 2018-08-17T23:28:08.18 10.0 positive automatic P 341 27.5624 -0.464048 1.32651
US.CNNC.BHZ.00 2018-08-17T23:28:04.45 10.0 positive automatic P 10 26.9878 0.0795258 0.761905
US.JCT.BHZ.00 2018-08-17T23:28:00.88 10.0 positive automatic P 327 26.7564 -1.1294 1.26032
US.OXF.BHZ.00 2018-08-17T23:27:58.45 10.0 positive automatic P 348 26.4498 -0.783339 0.960286
US.NATX.BHZ.00 2018-08-17T23:27:49.30 10.0 positive automatic P 337 25.4197 -0.624706 0.897107
US.GOGA.BHZ.00 2018-08-17T23:27:44.15 10.0 positive automatic P 359 24.7244 0.561197 0.930233
US.LRAL.BHZ.00 2018-08-17T23:27:43.35 10.0 positive automatic P 352 24.6065 0.826615 1.35876
US.NHSC.BHZ.00 2018-08-17T23:27:43.48 10.0 positive automatic P 6 24.5751 1.25742 1.0233
US.VBMS.BHZ.00 2018-08-17T23:27:42.15 10.0 positive automatic P 345 24.4956 0.655709 1.00945
IU.HKT.BHZ.00 2018-08-17T23:27:39.27 10.0 positive automatic P 333 24.3518 -0.810728 0.952381
MX.ZAIG.BHZ. 2018-08-17T23:27:32.49 10.0 positive automatic P 309 23.3282 0.480715 1.04199
US.KVTX.BHZ.00 2018-08-17T23:27:30.73 10.0 positive automatic P 325 23.4264 -2.08227 0.89063
US.BRAL.BHZ.00 2018-08-17T23:27:25.78 10.0 positive automatic P 351 22.7685 -0.627713 0.466724
CU.ANWB.BHZ.00 2018-08-17T23:27:22.52 10.0 positive automatic P 64 22.6516 0.562028 1.219
G.FDF.BHZ.00 2018-08-17T23:27:21.70 10.0 positive automatic P 72 22.3858 1.55938 1.2413
CU.GRGR.BHZ.00 2018-08-17T23:27:12.42 10.0 positive automatic P 79 21.438 1.03033 1.01767
II.NNA.BHZ.00 2018-08-17T23:27:11.57 10.0 positive automatic P 163 21.6112 -1.63243 0.966901
MX.MOIG.BHZ. 2018-08-17T23:27:04.89 10.0 positive automatic P 304 20.6187 2.68883 1.1698
IU.DWPF.BHZ.00 2018-08-17T23:26:51.27 10.0 positive automatic P 5 19.4917 1.04797 1.44278
G.UNM.BHZ.00 2018-08-17T23:26:45.10 10.0 positive automatic P 306 18.7982 2.97865 0.92208
CU.GRTK.BHZ.00 2018-08-17T23:26:28.00 10.0 positive automatic P 41 17.2892 2.99825 1.34929
MX.TLIG.BHZ. 2018-08-17T23:26:26.80 10.0 positive automatic P 302 17.4012 0.166501 1.35117
CU.SDDR.BHZ.00 2018-08-17T23:26:00.90 10.0 positive automatic P 47 15.452 -1.37619 1.60349
CU.GTBY.BHZ.00 2018-08-17T23:25:36.90 10.0 positive automatic P 34 13.6803 -1.10894 1.06833
IU.PAYG.BHZ.00 2018-08-17T23:25:12.22 10.0 positive automatic P 217 11.7394 1.09351 1.76089
MX.CCIG.BHZ. 2018-08-17T23:25:10.19 10.0 positive automatic P 312 11.5791 0.925007 1.24837
CU.MTDJ.BHZ.00 2018-08-17T23:25:00.63 10.0 positive automatic P 29 11.0001 -0.89037 1.02727
CU.TGUH.BHZ.00 2018-08-17T23:24:03.70 10.0 positive automatic P 324 6.7045 1.63217 1.94118
GE.BOAB.BHZ. 2018-08-17T23:23:30.30 10.0 positive automatic P 327 4.4878 0.396952 1.7022
CU.BCIP.BHZ.00 2018-08-17T23:23:14.00 10.0 positive automatic P 81 3.3329 0.566791 2.07638
II.JTS.BHZ.00 2018-08-17T23:23:01.67 10.0 positive automatic P 313 2.375 1.27876 1.90476
G.HDC.BHZ.00 2018-08-17T23:22:51.05 10.0 positive automatic P 325 1.6064 0.164073 2.85394
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