Earthquake (controlled explosion) with magnitude of ML 1.9 on date 10-08-2018 and time 18:38:59 (UTC) in region Golfo di Trieste (Trieste, Gorizia, Udine)

A magnitude ML 1.9 (controlled explosion) earthquake occured in region: Golfo di Trieste (Trieste, Gorizia, Udine), on

  • 10-08-2018 18:38:59 (UTC)
  • 10-08-2018 20:38:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.6310, 13.3620 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: controlled explosion.

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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Grado GO 5 8251 8251
Aquileia UD 15 3359 11610
Fiumicello UD 18 4971 16581
Terzo d'Aquileia UD 19 2866 19447
Lignano Sabbiadoro UD 19 6950 26397

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km W of Trieste (204420 inhabitants)
49 Km S of Udine (99169 inhabitants)
65 Km SE of Pordenone (51229 inhabitants)
83 Km E of Venezia (263352 inhabitants)
87 Km E of Treviso (83731 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.9 2018-08-10
18:38:59
45.6312 13.3617 0 2019-04-24
14:51:17
Bollettino Sismico Italiano INGV 67197391
Reviewed
Rev100
ML 1.9 2018-08-10
18:39:01
45.5867 13.3297 10 2018-08-10
18:46:05
Sala Sismica INGV-Roma 59605161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-10 18:38:59 ± 0.24
Latitude 45.6312 ± 0.0180
Longitude 13.3617 ± 0.0244
Depth (km) 0 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type controlled explosion
Origin ID 67197391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2070
Semi-minor axis of confidence ellipse (meter) 1790
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 30
Circular confidence region, given by single value of horizontal uncertainty (meter) 2070.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.49
Epicentral distance of station closest to the epicenter (degree) 0.62503
Epicentral distance of station farthest from the epicenter (degree) 2.01808
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 67197391
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-02 16:49:58

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 59605161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-10 18:46:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OE.WTTA.HHZ. 2018-08-10T18:39:37.16 0.6 undecidable manual P 325 224.0091 38 1.19 24
SI.ROSI.HHZ. 2018-08-10T18:39:34.34 0.6 undecidable manual P 315 207.4368 38 0.44 37
ST.OZOL.EHZ. 2018-08-10T18:39:32.46 0.3 undecidable manual P 297 197.5578 38 -0.21 62
SI.LUSI.HHZ. 2018-08-10T18:39:30.62 0.3 undecidable manual P 282 190.5648 38 -1.18 45
SI.KOSI.HHZ. 2018-08-10T18:39:30.41 0.3 undecidable manual P 302 178.488 50 0.34 66
IV.BRES.EHZ. 2018-08-10T18:39:29.61 0.3 undecidable manual P 314 172.1943 50 0.5 66
ST.DOSS.HHZ. 2018-08-10T18:39:28.14 0.1 undecidable manual P 280 170.496 50 -0.7 82
ST.PANI.EHZ. 2018-08-10T18:39:27.65 0.1 undecidable manual P 287 163.4142 50 -0.11 100
ST.ZIAN.EHZ. 2018-08-10T18:39:27.05 0.1 undecidable manual P 298 156.1215 50 0.43 97
SL.BOJS.BHZ. 2018-08-10T18:39:26.15 0.1 undecidable manual P 95 147.4413 50 0.86 85
IV.CTI.HHZ. 2018-08-10T18:39:24.32 0.3 undecidable manual P 290 140.1486 50 0.15 81
IV.TEOL.HHE. 2018-08-10T18:39:23.34 0.3 undecidable manual P 258 134.5653 50 0.04 84
OX.AGOR.HHN. 2018-08-10T18:39:22.72 0.3 undecidable manual P 304 121.3896 50 1.44 50
IV.FVI.HHZ. 2018-08-10T18:39:21.04 0.3 undecidable manual P 338 116.0949 50 0.59 76
OX.CGRP.HHZ. 2018-08-10T18:39:21.48 0.3 undecidable manual P 283 123.6873 50 -0.14 84
IV.ASOL.HNN. 2018-08-10T18:39:20.83 0.3 undecidable manual P 280 114.5964 50 0.6 76
OX.VARN.HHZ. 2018-08-10T18:39:19.14 0.3 undecidable manual P 293 105.117 50 0.38 83
OX.ZOU2.HHZ. 2018-08-10T18:39:19.04 0.3 undecidable manual P 344 107.115 50 -0.04 89
OX.CLUD.HHZ. 2018-08-10T18:39:18.64 0.3 undecidable manual P 338 98.8233 50 0.85 71
OX.ACOM.HNE. 2018-08-10T18:39:18.67 1.0 undecidable manual P 7 102.4197 50 0.33 28
OX.CIMO.HNZ. 2018-08-10T18:39:17.76 0.3 undecidable manual P 317 103.4187 50 -0.75 73
CR.BRJN.HHZ. 2018-08-10T18:39:15.14 0.3 undecidable manual P 159 85.9473 50 -0.68 78
IV.STAL.HHZ. 2018-08-10T18:39:15.41 0.3 undecidable manual P 324 85.9473 50 -0.41 85
OX.MPRI.HHN. 2018-08-10T18:39:13.08 0.3 undecidable manual P 337 73.5708 50 -0.82 75
NI.PALA.HHZ. 2018-08-10T18:39:13.89 0.3 undecidable manual P 334 75.9684 50 -0.39 88
NI.VINO.HHZ. 2018-08-10T18:39:11.64 0.1 undecidable manual P 355 69.375 50 -1.62 66
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.ZOU2.HHN. ML:1.5 0.000028149999999999996 0.42 AML other m 2018-08-10T18:39:22.47
NI.PALA.HHE. ML:1.7 0.00007764999999999999 1.36 AML other m 2018-08-10T18:39:28.98
NI.VINO.HHE. ML:1.5 0.0000498 1.48 AML other m 2018-08-10T18:39:31.13
NI.PALA.HHN. ML:1.7 0.00007755 0.16 AML other m 2018-08-10T18:39:32.73
NI.VINO.HHN. ML:1.4 0.00004295 1.58 AML other m 2018-08-10T18:39:33.84
IV.STAL.HHN. ML:1.9 0.0001085 0.18 AML other m 2018-08-10T18:39:33.65
IV.STAL.HHE. ML:1.9 0.00009920000000000001 0.34 AML other m 2018-08-10T18:39:34.53
OX.CLUD.HHN. ML:1.3 0.0000223 0.42 AML other m 2018-08-10T18:39:36.27
OX.CLUD.HHE. ML:1.5 0.000027950000000000002 0.68 AML other m 2018-08-10T18:39:36.08
OX.ZOU2.HHE. ML:1.6 0.000036400000000000004 0.24 AML other m 2018-08-10T18:39:37.60
OX.VARN.HHN. ML:1.9 0.00007165000000000001 0.24 AML other m 2018-08-10T18:39:37.84
OX.VARN.HHE. ML:2.2 0.000143 0.22 AML other m 2018-08-10T18:39:38.35
IV.FVI.HHN. ML:1.8 0.0000465 0.9 AML other m 2018-08-10T18:39:38.44
IV.FVI.HHE. ML:1.8 0.000054 0.2 AML other m 2018-08-10T18:39:40.30
OX.CGRP.HHN. ML:2.1 0.00009245000000000001 0.94 AML other m 2018-08-10T18:39:42.15
OX.CGRP.HHE. ML:2.0 0.00006924999999999999 0.32 AML other m 2018-08-10T18:39:42.32
IV.CTI.HHE. ML:2.4 0.00013550000000000001 0.76 AML other m 2018-08-10T18:39:44.60
IV.CTI.HHN. ML:2.5 0.000168 0.24 AML other m 2018-08-10T18:39:45.86
ST.DOSS.HHN. ML:2.3 0.00007435 1.46 AML other m 2018-08-10T18:39:51.92
ST.DOSS.HHE. ML:2.2 0.0000605 0.26 AML other m 2018-08-10T18:39:53.67
SI.LUSI.HHE. ML:2.0 0.00002895 0.22 AML other m 2018-08-10T18:39:57.39
SI.LUSI.HHN. ML:2.3 0.00006875 0.2 AML other m 2018-08-10T18:39:58.45
ST.OZOL.EHE. ML:2.3 0.0000673 0.3 AML other m 2018-08-10T18:39:59.20
ST.OZOL.EHN. ML:2.3 0.0000609 1.06 AML other m 2018-08-10T18:40:04.68
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download