Earthquake with magnitude of ML 1.0 on date 23-08-2019 and time 16:01:30 (Italy) in region 7 km SW Verzegnis (UD)

A magnitude ML 1.0 earthquake occured in region: 7 km SW Verzegnis (UD), on

  • 23-08-2019 14:01:30 (UTC)
  • 23-08-2019 16:01:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.33, 12.97 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
Verzegnis UD 7 863 863
Cavazzo Carnico UD 7 1052 1915
Tolmezzo UD 9 10440 12355
Trasaghis UD 10 2227 14582
Villa Santina UD 10 2233 16815
Preone UD 10 246 17061
Lauco UD 11 729 17790
Bordano UD 11 754 18544
Amaro UD 11 823 19367
Enemonzo UD 11 1319 20686
Vito d'Asio PN 11 769 21455
Forgaria nel Friuli UD 12 1786 23241
Clauzetto PN 12 380 23621
Osoppo UD 12 2936 26557
Venzone UD 13 2117 28674
Socchieve UD 14 908 29582
Raveo UD 14 458 30040
Tramonti di Sopra PN 14 321 30361
Tramonti di Sotto PN 14 387 30748
Gemona del Friuli UD 15 10964 41712
Zuglio UD 15 595 42307
Castelnovo del Friuli PN 16 880 43187
Ampezzo UD 16 1006 44193
Arta Terme UD 16 2171 46364
Pinzano al Tagliamento PN 17 1525 47889
Travesio PN 17 1776 49665
Ragogna UD 17 2909 52574
Artegna UD 18 2885 55459
Majano UD 18 5945 61404
Montenars UD 18 538 61942
Buja UD 18 6563 68505
Ovaro UD 19 1922 70427
Meduno PN 19 1574 72001
San Daniele del Friuli UD 19 8013 80014
Moggio Udinese UD 20 1714 81728
Magnano in Riviera UD 20 2336 84064

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of Udine (99169 inhabitants)
48 Km NE of Pordenone (51229 inhabitants)
93 Km NE of Treviso (83731 inhabitants)
98 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 1.0 2019-08-23
14:01:30
46.33 12.97 8 2019-08-23
14:07:00
Sala Sismica INGV-Roma 71745461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-23 14:01:30 ± 0.17
Latitude 46.33 ± 0.00
Longitude 12.97 ± 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 71745461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 429
Semi-minor axis of confidence ellipse (meter) 84
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 232
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
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 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.22573
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 71745461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-23 14:07:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
MN.TRI.HHZ. 2019-08-23T14:01:57.05 3.0 undecidable manual S -0.18 0
NI.VINO.HHZ. 2019-08-23T14:01:39.94 0.1 undecidable manual S 110 0.2257 108 -0.1 98
OX.ZOU2.HHZ. 2019-08-23T14:01:39.98 0.1 undecidable manual S 1 0.2257 108 -0.03 99
IV.STAL.HHZ. 2019-08-23T14:01:38.42 0.1 undecidable manual S 248 0.1925 111 -0.4 92
OX.ZOU2.HHZ. 2019-08-23T14:01:36.24 0.1 undecidable manual P 1 0.2257 108 0.09 98
RF.GEPF.HHZ. 2019-08-23T14:01:36.74 0.1 undecidable manual S 116 0.1304 120 0.07 100
OX.CLUD.HHZ. 2019-08-23T14:01:36.97 0.1 undecidable manual S 334 0.1376 118 0.07 100
OX.FUSE.HHZ. 2019-08-23T14:01:35.01 0.1 undecidable manual S 15 0.0845 131 -0.19 99
IV.STAL.HHZ. 2019-08-23T14:01:35.40 0.1 undecidable manual P 248 0.1925 111 -0.07 99
OX.BOO.HHE. 2019-08-23T14:01:35.16 0.1 undecidable manual S 98 0.0908 129 -0.22 98
NI.VINO.HHZ. 2019-08-23T14:01:35.99 0.1 undecidable manual P 110 0.2257 108 -0.17 96
OX.MPRI.HHE. 2019-08-23T14:01:35.68 0.1 undecidable manual S 172 0.0926 129 0.22 98
OX.CLUD.HHZ. 2019-08-23T14:01:34.55 0.1 undecidable manual P 334 0.1376 118 0.2 97
RF.GEPF.HHZ. 2019-08-23T14:01:33.93 0.1 undecidable manual P 116 0.1304 120 -0.29 96
OX.MPRI.HHE. 2019-08-23T14:01:33.96 0.1 undecidable manual P 172 0.0926 129 0.44 93
OX.FUSE.HHZ. 2019-08-23T14:01:33.55 0.1 undecidable manual P 15 0.0845 131 0.18 99
OX.BOO.HHE. 2019-08-23T14:01:33.66 0.1 undecidable manual P 98 0.0908 129 0.19 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
RF.GEPF.HHN. ML:0.8 6.57E-5 0.42 AML other m 2019-08-23T14:01:36.66
RF.GEPF.HHE. ML:0.9 8.055E-5 1.82 AML other m 2019-08-23T14:01:36.05
OX.ZOU2.HHE. ML:1.1 6.845E-5 0.7 AML other m 2019-08-23T14:01:40.38
OX.ZOU2.HHN. ML:0.7 3.215E-5 0.46 AML other m 2019-08-23T14:01:40.86
IV.STAL.HHN. ML:1.7 0.000363 1.5 AML other m 2019-08-23T14:01:49.79
IV.STAL.HHE. ML:2 0.0008175 1.48 AML other m 2019-08-23T14:01:49.79
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