Earthquake with magnitude of ML 0.9 on date 31-03-2020 and time 20:31:49 (Italy) in region Confine Italia Slovenia (SLOVENIA)

A magnitude ML 0.9 earthquake occured in region: Confine Italia Slovenia (SLOVENIA), on

  • 31-03-2020 18:31:49 (UTC)
  • 31-03-2020 20:31:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.06, 13.59 at 14 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Stregna UD 8 356 356
San Floriano del Collio GO 8 796 1152
Prepotto UD 9 769 1921
Dolegna del Collio GO 9 370 2291
San Leonardo UD 9 1129 3420
Grimacco UD 11 342 3762
San Pietro al Natisone UD 12 2171 5933
Savogna UD 13 411 6344
Gorizia GO 13 34844 41188
Cividale del Friuli UD 13 11292 52480
Corno di Rosazzo UD 13 3219 55699
Mossa GO 13 1584 57283
Drenchia UD 14 115 57398
Cormons GO 14 7414 64812
Capriva del Friuli GO 14 1713 66525
San Lorenzo Isontino GO 15 1564 68089
Torreano UD 15 2139 70228
Premariacco UD 15 4163 74391
Pulfero UD 16 962 75353
Moraro GO 16 768 76121
San Giovanni al Natisone UD 17 6197 82318
Moimacco UD 17 1675 83993
Savogna d'Isonzo GO 17 1717 85710
Farra d'Isonzo GO 17 1733 87443
Manzano UD 18 6455 93898
Mariano del Friuli GO 18 1530 95428
Gradisca d'Isonzo GO 20 6497 101925

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Udine (99169 inhabitants)
47 Km NW of Trieste (204420 inhabitants)
73 Km E of Pordenone (51229 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 ML 0.9 2020-03-31
18:31:49
46.06 13.59 14 2020-03-31
18:56:29
Sala Sismica INGV-Roma 77732191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-31 18:31:49 ± 0.08
Latitude 46.06 ± 0.00
Longitude 13.59 ± 0.01
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77732191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 515
Semi-minor axis of confidence ellipse (meter) 395
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
Circular confidence region, given by single value of horizontal uncertainty (meter) 520
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.28153
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 17
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 77732191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-31 18:56:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2020-03-31T18:33:34.77 3.0 undecidable manual Sg 6.91 0
AC.VLO.HHZ. 2020-03-31T18:33:33.23 3.0 undecidable manual Pg 13.99 0
IV.RIBO.EHZ.01 2020-03-31T18:33:22.38 3.0 undecidable manual Sn -2.15 0
IV.VVLD.HHZ. 2020-03-31T18:33:22.15 3.0 undecidable manual Sn -9.99 0
IV.MURB.HNZ. 2020-03-31T18:33:11.78 3.0 undecidable manual Sg 7.1 0
IV.PAOL.HHZ. 2020-03-31T18:33:08.29 3.0 undecidable manual Pg 12.63 0
IV.CADA.HNZ. 2020-03-31T18:32:49.02 3.0 undecidable manual Sn -9.99 0
IV.SAMA.EHZ. 2020-03-31T18:32:44.39 3.0 undecidable manual Pn -3.26 0
ST.DOSS.HHZ. 2020-03-31T18:32:43.51 3.0 undecidable manual Sn 1.21 0
IV.VCEL.EHZ. 2020-03-31T18:32:37.99 3.0 undecidable manual Pg 0.94 0
SL.BOJS.BHE. 2020-03-31T18:32:13.38 0.6 undecidable manual P 115 1.2815 91 0.8 32
CR.BRJN.HHE. 2020-03-31T18:32:11.17 0.6 undecidable manual P 174 1.1547 91 0.76 33
OX.VARN.HHZ. 2020-03-31T18:32:09.33 3.0 undecidable manual Pg 2.16 0
OX.PLRO.HHE. 2020-03-31T18:32:09.23 0.6 undecidable manual S 328 0.5801 93 0.32 43
OX.ACOM.HHE. 2020-03-31T18:32:06.98 0.6 undecidable manual S 354 0.4946 94 0.6 41
OX.BOO.HHE. 2020-03-31T18:32:04.60 0.3 undecidable manual S 308 0.4317 94 0.1 68
OX.CAE.HHE. 2020-03-31T18:32:04.85 1.0 undecidable manual P 267 0.8022 92 0.47 20
OX.PRED.HHE. 2020-03-31T18:32:03.20 0.3 undecidable manual S 357 0.3876 95 0 70
IV.PTCC.HHZ. 2020-03-31T18:32:03.07 0.3 undecidable manual S 335 0.3885 95 -0.15 68
OX.MLN.HHE. 2020-03-31T18:32:03.01 1.0 undecidable manual P 278 0.6835 92 0.66 19
RF.GEPF.HHZ. 2020-03-31T18:32:02.85 0.6 undecidable manual S 305 0.3831 95 -0.21 45
MN.TRI.HHZ. 2020-03-31T18:32:02.48 0.3 undecidable manual S 161 0.3669 96 -0.11 69
SL.LJU.BHZ. 2020-03-31T18:32:01.48 0.6 undecidable manual P 91 0.6493 93 -0.29 41
OX.PLRO.HHE. 2020-03-31T18:32:00.99 0.6 undecidable manual P 328 0.5801 93 0.4 42
OX.FUSE.HHE. 2020-03-31T18:32:00.17 0.1 undecidable manual P 311 0.5432 93 0.21 88
OX.BAD.HHE. 2020-03-31T18:32:00.59 0.3 undecidable manual S 307 0.2995 98 -0.03 72
NI.VINO.HHZ. 2020-03-31T18:32:00.39 0.3 undecidable manual S 312 0.295 98 -0.1 71
OX.ACOM.HHE. 2020-03-31T18:31:59.00 0.1 undecidable manual P 354 0.4946 94 -0.13 89
OX.BOO.HHE. 2020-03-31T18:31:57.88 0.6 undecidable manual P 308 0.4317 94 -0.17 45
OX.PRED.HHE. 2020-03-31T18:31:57.12 0.1 undecidable manual P 357 0.3876 95 -0.18 90
RF.GEPF.HHZ. 2020-03-31T18:31:57.23 0.6 undecidable manual P 305 0.3831 95 0.01 47
IV.PTCC.HHZ. 2020-03-31T18:31:57.15 0.3 undecidable manual P 335 0.3885 95 -0.16 68
MN.TRI.HHZ. 2020-03-31T18:31:56.71 0.6 undecidable manual P 161 0.3669 96 -0.23 45
OX.BAD.HHE. 2020-03-31T18:31:55.53 0.1 undecidable manual P 307 0.2995 98 -0.28 91
NI.VINO.HHZ. 2020-03-31T18:31:55.46 0.1 undecidable manual P 312 0.295 98 -0.27 91
OX.DRE.HHZ. 2020-03-31T18:31:55.53 0.3 undecidable manual S 17 0.1232 123 -0.09 72
OX.SABO.HHZ. 2020-03-31T18:31:54.39 0.3 undecidable manual S 157 0.0737 141 -0.15 72
OX.DRE.HHZ. 2020-03-31T18:31:52.96 0.1 undecidable manual P 17 0.1232 123 0.04 99
OX.SABO.HHZ. 2020-03-31T18:31:52.34 0.1 undecidable manual P 157 0.0737 141 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.SABO.HHN. ML:1.6 0.0004775 0.18 AML other m 2020-03-31T18:31:54.68
OX.SABO.HHE. ML:1.6 0.0004255 0.58 AML other m 2020-03-31T18:31:54.46
NI.VINO.HHE. ML:1 3.991544E-5 1.536 AML other m 2020-03-31T18:32:00.47
NI.VINO.HHN. ML:0.8 2.608703E-5 0.1536 AML other m 2020-03-31T18:32:00.86
MN.TRI.HHE. ML:1.2 5.187701E-5 2.112 AML other m 2020-03-31T18:32:02.88
MN.TRI.HHN. ML:1.1 4.0991695E-5 1.3952 AML other m 2020-03-31T18:32:02.36
IV.PTCC.HHE. ML:0.7 1.591868E-5 1.7408 AML other m 2020-03-31T18:32:03.74
IV.PTCC.HHN. ML:0.5 1.15339105E-5 0.3712 AML other m 2020-03-31T18:32:03.27
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