Earthquake with magnitude of ML 0.8 on date 04-07-2020 and time 23:20:25 (Italy) in region 2 km NW Trasaghis (UD)

A magnitude ML 0.8 earthquake occured in region: 2 km NW Trasaghis (UD), on

  • 04-07-2020 21:20:25 (UTC)
  • 04-07-2020 23:20:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.3, 13.07 at 8 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
Trasaghis UD 2 2227 2227
Bordano UD 4 754 2981
Osoppo UD 5 2936 5917
Gemona del Friuli UD 6 10964 16881
Venzone UD 7 2117 18998
Cavazzo Carnico UD 8 1052 20050
Amaro UD 9 823 20873
Artegna UD 9 2885 23758
Montenars UD 10 538 24296
Buja UD 11 6563 30859
Vito d'Asio PN 11 769 31628
Forgaria nel Friuli UD 11 1786 33414
Magnano in Riviera UD 11 2336 35750
Verzegnis UD 12 863 36613
Majano UD 12 5945 42558
Tolmezzo UD 13 10440 52998
Treppo Grande UD 14 1708 54706
Clauzetto PN 14 380 55086
Tarcento UD 15 9012 64098
Ragogna UD 15 2909 67007
Lusevera UD 15 643 67650
Colloredo di Monte Albano UD 16 2223 69873
Pinzano al Tagliamento PN 16 1525 71398
San Daniele del Friuli UD 16 8013 79411
Moggio Udinese UD 16 1714 81125
Resiutta UD 16 309 81434
Cassacco UD 17 2938 84372
Castelnovo del Friuli PN 17 880 85252
Villa Santina UD 17 2233 87485
Lauco UD 17 729 88214
Zuglio UD 19 595 88809
Nimis UD 19 2740 91549
Tricesimo UD 19 7600 99149
Travesio PN 19 1776 100925
Preone UD 19 246 101171
Enemonzo UD 19 1319 102490
Rive d'Arcano UD 19 2444 104934
Arta Terme UD 20 2171 107105

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of Udine (99169 inhabitants)
49 Km NE of Pordenone (51229 inhabitants)
90 Km NW of Trieste (204420 inhabitants)
95 Km NE of Treviso (83731 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
Reviewed
Rev100
ML 0.8 2020-07-04
21:20:25
46.3 13.07 8 2020-07-04
21:24:10
Sala Sismica INGV-Roma 80782791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-04 21:20:25 ± 0.08
Latitude 46.30 ± 0.00
Longitude 13.07 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80782791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 453
Semi-minor axis of confidence ellipse (meter) 375
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 206
Circular confidence region, given by single value of horizontal uncertainty (meter) 450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.08004
Epicentral distance of station farthest from the epicenter (degree) 0.49912
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 80782791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-04 21:24:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OX.SABO.HHZ. 2020-07-04T21:20:43.65 0.6 undecidable manual S 128 0.4991 50 0.39 45
OX.CIMO.HHZ. 2020-07-04T21:20:40.72 0.6 undecidable manual S 272 0.4308 50 -0.5 44
OX.ACOM.HHZ. 2020-07-04T21:20:40.48 0.6 undecidable manual S 51 0.3957 50 0.3 47
IV.FVI.HHZ. 2020-07-04T21:20:39.29 0.6 undecidable manual S 327 0.3579 50 0.22 48
IV.STAL.HHZ. 2020-07-04T21:20:35.15 0.6 undecidable manual S 261 0.25 107 -0.3 48
OX.SABO.HHZ. 2020-07-04T21:20:35.64 0.6 positive manual P 128 0.4991 50 -0.06 48
OX.DRE.HHZ. 2020-07-04T21:20:34.13 0.3 undecidable manual P 107 0.4173 50 -0.17 71
OX.CIMO.HHZ. 2020-07-04T21:20:34.37 0.6 positive manual P 272 0.4308 50 -0.16 48
OX.ACOM.HHZ. 2020-07-04T21:20:34.11 1.0 positive manual P 51 0.3957 50 0.18 24
OX.CLUD.HHZ. 2020-07-04T21:20:33.88 0.6 undecidable manual S 321 0.2041 110 0.1 50
IV.FVI.HHZ. 2020-07-04T21:20:33.37 1.0 undecidable manual P 327 0.3579 50 0.08 25
IV.PTCC.HHZ. 2020-07-04T21:20:33.92 0.6 undecidable manual S 61 0.2257 108 -0.62 44
OX.FUSE.HHZ. 2020-07-04T21:20:31.04 0.6 undecidable manual S 338 0.125 121 0.03 52
IV.PTCC.HHZ. 2020-07-04T21:20:30.44 0.6 positive manual P 61 0.2257 108 -0.24 49
IV.STAL.HHZ. 2020-07-04T21:20:30.98 1.0 undecidable manual P 261 0.25 107 -0.22 24
OX.CLUD.HHZ. 2020-07-04T21:20:30.25 1.0 undecidable manual P 321 0.2041 110 0.01 26
OX.MPRI.HHZ. 2020-07-04T21:20:29.79 0.6 undecidable manual S 224 0.08 133 0.18 51
OX.MPRI.HHZ. 2020-07-04T21:20:28.20 0.6 negative manual P 224 0.08 133 0.38 49
OX.FUSE.HHZ. 2020-07-04T21:20:28.84 0.1 negative manual P 338 0.125 121 0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.MPRI.HHE. ML:1.1 0.000177 0.2 AML other m 2020-07-04T21:20:30.55
OX.MPRI.HNE. ML:1 0.0001373 0.18 AML other m 2020-07-04T21:20:30.45
OX.MPRI.HNN. ML:0.9 0.0001205 0.76 AML other m 2020-07-04T21:20:30.51
OX.MPRI.HHN. ML:1 0.0001545 1.56 AML other m 2020-07-04T21:20:30.85
OX.CLUD.HHE. ML:0.6 3.23E-5 0.38 AML other m 2020-07-04T21:20:34.91
IV.PTCC.HHE. ML:0.6 2.25E-5 0.48 AML other m 2020-07-04T21:20:35.35
OX.CLUD.HHN. ML:0.6 2.49E-5 1.38 AML other m 2020-07-04T21:20:36.86
IV.STAL.HHN. ML:1.2 7.6E-5 0.26 AML other m 2020-07-04T21:20:36.24
IV.STAL.HHE. ML:0.9 4.545E-5 1.12 AML other m 2020-07-04T21:20:36.22
IV.PTCC.HHN. ML:0.5 2.225E-5 1.08 AML other m 2020-07-04T21:20:37.00
IV.FVI.HHN. ML:0.8 1.87E-5 0.48 AML other m 2020-07-04T21:20:39.64
IV.FVI.HHE. ML:0.9 3.005E-5 0.14 AML other m 2020-07-04T21:20:39.98
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