INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.7 on date 21-02-2019 and time 20:53:51 (Italy) in region 4 km NE Venzone (UD)

A magnitude ML 0.7 earthquake occured in region: 4 km NE Venzone (UD), on

  • 21-02-2019 19:53:51 (UTC)
  • 21-02-2019 20:53:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.36, 13.18 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
Venzone UD 4 2117 2117
Resiutta UD 5 309 2426
Moggio Udinese UD 6 1714 4140
Amaro UD 7 823 4963
Bordano UD 7 754 5717
Gemona del Friuli UD 10 10964 16681
Resia UD 10 1033 17714
Cavazzo Carnico UD 11 1052 18766
Montenars UD 11 538 19304
Trasaghis UD 11 2227 21531
Chiusaforte UD 12 672 22203
Lusevera UD 12 643 22846
Artegna UD 13 2885 25731
Tolmezzo UD 13 10440 36171
Osoppo UD 14 2936 39107
Magnano in Riviera UD 14 2336 41443
Verzegnis UD 14 863 42306
Dogna UD 15 175 42481
Zuglio UD 16 595 43076
Tarcento UD 16 9012 52088
Buja UD 17 6563 58651
Arta Terme UD 17 2171 60822
Taipana UD 18 636 61458
Treppo Grande UD 19 1708 63166
Nimis UD 19 2740 65906
Pontebba UD 19 1433 67339
Paularo UD 20 2623 69962
Lauco UD 20 729 70691

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km N of Udine (99169 inhabitants)
60 Km NE of Pordenone (51229 inhabitants)
91 Km NW of Trieste (204420 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 0.7 2019-02-21
19:53:51
46.36 13.18 9 2019-02-21
20:01:40
Sala Sismica INGV-Roma 65769821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-21 19:53:51 ± 0.13
Latitude 46.36 ± 0.00
Longitude 13.18 ± 0.00
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65769821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 302
Semi-minor axis of confidence ellipse (meter) 268
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 334
Circular confidence region, given by single value of horizontal uncertainty (meter) 300
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.08813
Epicentral distance of station farthest from the epicenter (degree) 0.29857
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 65769821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-21 20:01:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OX.CLUD.HHZ. 2019-02-21T19:54:00.46 0.6 undecidable manual S 296 0.2257 109 -0.09 49
NI.PALA.HHZ. 2019-02-21T19:53:59.95 0.3 undecidable manual S 237 0.2086 110 0.03 74
OX.MPRI.HHZ. 2019-02-21T19:53:58.93 0.3 undecidable manual S 228 0.1763 113 0.17 73
OX.ACOM.HNZ. 2019-02-21T19:53:58.31 0.1 undecidable manual P 51 0.2986 104 0.08 96
OX.ZOU2.HHZ. 2019-02-21T19:53:57.14 0.3 positive manual P 325 0.2437 107 0.09 73
NI.VINO.HHZ. 2019-02-21T19:53:57.28 0.3 undecidable manual S 147 0.125 121 0.27 72
IV.PTCC.HHZ. 2019-02-21T19:53:57.16 0.3 undecidable manual S 68 0.1313 120 -0.06 75
NI.PALA.HHZ. 2019-02-21T19:53:56.08 0.6 positive manual P 237 0.2086 110 -0.23 47
OX.CLUD.HHZ. 2019-02-21T19:53:56.74 0.3 positive manual P 296 0.2257 109 0.07 73
RF.GEPF.HHZ. 2019-02-21T19:53:55.72 0.6 undecidable manual S 198 0.0881 131 -0.14 49
OX.MPRI.HHZ. 2019-02-21T19:53:55.64 0.1 undecidable manual P 228 0.1763 113 0 100
IV.PTCC.HHZ. 2019-02-21T19:53:54.74 0.3 undecidable manual P 68 0.1313 120 0 76
NI.VINO.HHZ. 2019-02-21T19:53:54.36 0.3 positive manual P 147 0.125 121 -0.27 72
RF.GEPF.HHZ. 2019-02-21T19:53:53.87 0.6 positive manual P 198 0.0881 131 -0.09 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
RF.GEPF.HHE. ML:0.4 3.8728555E-5 0.2432 AML other m 2019-02-21T19:53:55.87
RF.GEPF.HHN. ML:0.4 3.7572705E-5 0.256 AML other m 2019-02-21T19:53:57.08
NI.VINO.HHE. ML:0.6 4.20296E-5 0.0512 AML other m 2019-02-21T19:53:57.56
NI.VINO.HHN. ML:0.4 2.937197E-5 0.064 AML other m 2019-02-21T19:53:57.81
IV.PTCC.HHE. ML:0.9 7.8140335E-5 0.1664 AML other m 2019-02-21T19:53:57.49
IV.PTCC.HHN. ML:0.7 5.5201995E-5 0.192 AML other m 2019-02-21T19:53:57.68
OX.MPRI.HHE. ML:0.9 6.573379E-5 0.2048 AML other m 2019-02-21T19:53:59.17
OX.MPRI.HHN. ML:0.9 5.84535E-5 0.192 AML other m 2019-02-21T19:53:59.22
OX.MPRI.HNE. ML:0.8 4.480083E-5 0.2048 AML other m 2019-02-21T19:53:59.17
NI.PALA.HHE. ML:1 6.8154425E-5 0.1024 AML other m 2019-02-21T19:54:00.18
NI.PALA.HHN. ML:1 6.244449E-5 0.1536 AML other m 2019-02-21T19:54:00.08
OX.CLUD.HHE. ML:0.6 2.2526195E-5 0.32 AML other m 2019-02-21T19:54:00.71
OX.CLUD.HHN. ML:0.4 1.25537435E-5 0.2176 AML other m 2019-02-21T19:54:00.81
OX.ZOU2.HHE. ML:0.7 3.116467E-5 0.2048 AML other m 2019-02-21T19:54:02.25
OX.ZOU2.HHN. ML:0.6 1.9927259E-5 0.1536 AML other m 2019-02-21T19:54:01.87
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