INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.5 on date 07-08-2018 and time 01:27:49 (Italy) in region 4 km N Lusevera (UD)

A magnitude ML 1.5 earthquake occured in region: 4 km N Lusevera (UD), on

  • 06-08-2018 23:27:49 (UTC)
  • 07-08-2018 01:27:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.31, 13.26 at 11 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
Lusevera UD 4 643 643
Montenars UD 8 538 1181
Resia UD 8 1033 2214
Taipana UD 9 636 2850
Gemona del Friuli UD 10 10964 13814
Venzone UD 10 2117 15931
Resiutta UD 10 309 16240
Tarcento UD 10 9012 25252
Magnano in Riviera UD 11 2336 27588
Artegna UD 11 2885 30473
Nimis UD 12 2740 33213
Bordano UD 12 754 33967
Chiusaforte UD 12 672 34639
Moggio Udinese UD 13 1714 36353
Attimis UD 13 1805 38158
Trasaghis UD 15 2227 40385
Amaro UD 15 823 41208
Treppo Grande UD 15 1708 42916
Osoppo UD 15 2936 45852
Buja UD 15 6563 52415
Cassacco UD 16 2938 55353
Tricesimo UD 16 7600 62953
Dogna UD 17 175 63128
Reana del Rojale UD 17 4966 68094
Colloredo di Monte Albano UD 18 2223 70317
Faedis UD 18 2945 73262
Cavazzo Carnico UD 18 1052 74314
Majano UD 20 5945 80259

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km N of Udine (99169 inhabitants)
61 Km NE of Pordenone (51229 inhabitants)
83 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 1.5 2018-08-06
23:27:49
46.31 13.26 11 2018-08-06
23:34:26
Sala Sismica INGV-Roma 59460861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-06 23:27:49 ± 0.12
Latitude 46.31 ± 0.01
Longitude 13.26 ± 0.01
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 59460861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1033
Semi-minor axis of confidence ellipse (meter) 212
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 152
Circular confidence region, given by single value of horizontal uncertainty (meter) 1030
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 215
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.44067
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 59460861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-06 23:34:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.ROTM.HHZ. 2018-08-06T23:29:55.72 3.0 undecidable manual Sg 22.98 0
IV.TOLF.HHZ. 2018-08-06T23:29:45.04 3.0 undecidable manual Sn -3.08 0
IV.CRTO.HHZ. 2018-08-06T23:29:16.58 3.0 negative manual Pn 3.43 0
IV.CELB.HHZ. 2018-08-06T23:29:07.15 3.0 undecidable manual Pg 13.02 0
IV.SAMA.HHZ. 2018-08-06T23:29:06.84 3.0 undecidable manual Pg 7.41 0
IV.VIVA.HHZ. 2018-08-06T23:29:05.71 3.0 undecidable manual Pg 6.02 0
IV.BRSN.EHZ. 2018-08-06T23:28:55.47 3.0 undecidable manual Sn -0.03 0
ST.OZOL.EHZ. 2018-08-06T23:28:41.58 3.0 undecidable manual Sn 3.36 0
SL.BOJS.BHZ. 2018-08-06T23:28:40.77 3.0 undecidable manual Sn -0.26 0
CR.BRJN.HHZ. 2018-08-06T23:28:37.29 3.0 undecidable manual S -0.2 0
IV.CTI.HHZ. 2018-08-06T23:28:30.63 3.0 undecidable manual S 1.44 0
ST.ZIAN.EHZ. 2018-08-06T23:28:14.11 3.0 positive manual P 1.7 0
IV.FVI.HHZ. 2018-08-06T23:28:05.37 0.6 undecidable manual S 311 0.4407 50 0.06 48
IV.STAL.HHZ. 2018-08-06T23:28:03.21 0.6 undecidable manual S 263 0.3831 50 -0.39 45
OX.ACOM.HHZ. 2018-08-06T23:28:01.13 0.6 undecidable manual S 36 0.2986 50 0.06 49
OX.CLUD.HHZ. 2018-08-06T23:28:01.25 0.6 undecidable manual S 300 0.3031 50 0.04 49
IV.FVI.HHZ. 2018-08-06T23:27:58.80 0.3 positive manual P 311 0.4407 50 0.09 71
OX.MPRI.HHZ. 2018-08-06T23:27:58.36 0.6 undecidable manual S 251 0.1996 50 0.19 48
IV.STAL.HHZ. 2018-08-06T23:27:57.58 1.0 positive manual P 263 0.3831 50 -0.14 24
OX.ACOM.HHZ. 2018-08-06T23:27:56.30 0.1 positive manual P 36 0.2986 50 0.03 99
OX.CLUD.HHZ. 2018-08-06T23:27:56.35 0.3 negative manual P 300 0.3031 50 0.01 74
IV.PTCC.HHZ. 2018-08-06T23:27:55.30 0.6 undecidable manual S 32 0.1205 129 -0.31 49
OX.MPRI.HHZ. 2018-08-06T23:27:54.72 1.0 undecidable manual P 251 0.1996 50 0.14 24
IV.PTCC.HHZ. 2018-08-06T23:27:53.18 0.1 positive manual P 32 0.1205 129 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PTCC.HHN. ML:1.6 0.0004125 0.22 AML other m 2018-08-06T23:27:55.54
IV.PTCC.HHE. ML:1.3 0.000215 0.34 AML other m 2018-08-06T23:27:56.22
OX.MPRI.HHN. ML:1.7 0.00032 1.46 AML other m 2018-08-06T23:27:59.76
OX.MPRI.HNN. ML:1.6 0.000235 0.64 AML other m 2018-08-06T23:28:00.63
OX.MPRI.HNE. ML:1.5 0.00021 0.38 AML other m 2018-08-06T23:28:00.63
OX.MPRI.HHE. ML:1.6 0.0002745 1.16 AML other m 2018-08-06T23:28:00.64
OX.ACOM.HHN. ML:1.6 0.0001655 0.4 AML other m 2018-08-06T23:28:01.38
OX.CLUD.HHN. ML:1.1 4.925E-5 0.38 AML other m 2018-08-06T23:28:01.82
OX.ACOM.HNN. ML:1.6 0.0001835 1.14 AML other m 2018-08-06T23:28:01.38
OX.ACOM.HNE. ML:1.8 0.0002725 0.14 AML other m 2018-08-06T23:28:02.45
OX.ACOM.HHE. ML:1.8 0.000275 0.14 AML other m 2018-08-06T23:28:02.45
OX.CLUD.HHE. ML:1 3.99E-5 0.46 AML other m 2018-08-06T23:28:02.92
IV.STAL.HHN. ML:1.3 6.62E-5 0.62 AML other m 2018-08-06T23:28:05.01
IV.FVI.HHN. ML:1.2 4.54E-5 0.46 AML other m 2018-08-06T23:28:05.59
IV.STAL.HHE. ML:1.3 6.77E-5 0.52 AML other m 2018-08-06T23:28:06.27
IV.FVI.HHE. ML:1.3 5.59E-5 0.16 AML other m 2018-08-06T23:28:07.11
IV.CTI.HHE. ML:1.9 5.495E-5 1.14 AML other m 2018-08-06T23:28:31.31
IV.CTI.HHN. ML:1.7 3.555E-5 1.32 AML other m 2018-08-06T23:28:31.25
IV.BRSN.EHE. ML:3.2 0.000283 0.42 AML other m 2018-08-06T23:29:00.66
IV.BRSN.EHN. ML:2.9 0.0001618 0.68 AML other m 2018-08-06T23:29:04.39
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