Earthquake with magnitude of ML 1.6 on date 18-09-2021 and time 23:32:22 (Italy) in region 5 km S Resiutta (UD)

A magnitude ML 1.6 earthquake occured in region: 5 km S Resiutta (UD), on

  • 18-09-2021 21:32:22 (UTC)
  • 18-09-2021 23:32:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.348, 13.216 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
Resiutta UD 5 309 309
Venzone UD 6 2117 2426
Moggio Udinese UD 7 1714 4140
Resia UD 8 1033 5173
Bordano UD 9 754 5927
Amaro UD 10 823 6750
Gemona del Friuli UD 10 10964 17714
Lusevera UD 10 643 18357
Chiusaforte UD 10 672 19029
Montenars UD 10 538 19567
Artegna UD 13 2885 22452
Trasaghis UD 13 2227 24679
Magnano in Riviera UD 13 2336 27015
Cavazzo Carnico UD 14 1052 28067
Dogna UD 14 175 28242
Taipana UD 15 636 28878
Osoppo UD 15 2936 31814
Tarcento UD 15 9012 40826
Tolmezzo UD 17 10440 51266
Nimis UD 17 2740 54006
Buja UD 17 6563 60569
Verzegnis UD 18 863 61432
Treppo Grande UD 18 1708 63140
Attimis UD 19 1805 64945
Pontebba UD 19 1433 66378
Zuglio UD 19 595 66973
Cassacco UD 19 2938 69911

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km N of Udine (99169 inhabitants)
61 Km NE of Pordenone (51229 inhabitants)
89 Km NW of Trieste (204420 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 1.6 2021-09-18
21:32:22
46.3477 13.2155 11 2021-09-18
21:45:38
Sala Sismica INGV-Roma 95602651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-18 21:32:22 ± 0.05
Latitude 46.3477 ± 0.0036
Longitude 13.2155 ± 0.0052
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 95602651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 423
Semi-minor axis of confidence ellipse (meter) 287
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 136
Circular confidence region, given by single value of horizontal uncertainty (meter) 420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 25
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
Epicentral distance of station farthest from the epicenter (degree) 0.74284
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 95602651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-18 21:45:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MNTT.EHZ. 2021-09-18T21:33:55.92 3.0 undecidable manual Sn 3.26 0
IV.MOMA.HHZ. 2021-09-18T21:33:40.99 3.0 undecidable manual S 0
GU.MGRO.HHZ. 2021-09-18T21:33:32.01 3.0 positive manual Pn 2.85 0
IV.MOMA.HHZ. 2021-09-18T21:33:28.93 3.0 undecidable manual P 0
IV.IMOL.HNZ. 2021-09-18T21:33:26.96 3.0 undecidable manual Sn -0.03 0
SL.BOJS.BHZ. 2021-09-18T21:33:17.67 3.0 undecidable manual Sg 5.22 0
IV.PP3.EHZ. 2021-09-18T21:33:15.38 3.0 undecidable manual Pg 6.65 0
IV.ABSI.HHZ. 2021-09-18T21:33:08.64 3.0 undecidable manual S 0
IV.APEC.HHZ. 2021-09-18T21:33:07.29 3.0 positive manual Pn 0.42 0
SL.BOJS.BHZ. 2021-09-18T21:32:54.12 3.0 positive manual Pg 3.67 0
IV.MBAL.EHZ. 2021-09-18T21:32:53.93 3.0 undecidable manual Pn 1.81 0
IV.ABSI.HHZ. 2021-09-18T21:32:50.16 3.0 undecidable manual P 0
IV.VARN.HHZ. 2021-09-18T21:32:40.54 3.0 undecidable manual P 0
MN.TRI.HHZ. 2021-09-18T21:32:36.29 0.3 undecidable manual P 149 0.7428 50 -0.3 63
IV.FVI.HHZ. 2021-09-18T21:32:36.48 0.3 undecidable manual S 310 0.3894 50 -0.01 71
IV.STAL.HHZ. 2021-09-18T21:32:35.25 0.3 undecidable manual S 256 0.3597 50 -0.35 67
OX.CIMO.HHZ. 2021-09-18T21:32:35.64 3.0 positive manual P 2.26 0
OX.ACOM.HHZ. 2021-09-18T21:32:33.48 0.1 undecidable manual S 46 0.2869 50 0.03 95
OX.CLUD.HHZ. 2021-09-18T21:32:32.37 0.3 undecidable manual S 296 0.2545 50 -0.13 71
OX.MLN.HHZ. 2021-09-18T21:32:32.19 0.3 undecidable manual P 245 0.4596 50 0.45 64
OX.SABO.HHZ. 2021-09-18T21:32:31.90 0.1 undecidable manual P 141 0.4614 50 0.12 90
NI.PALA.HHZ. 2021-09-18T21:32:31.55 0.1 undecidable manual S 243 0.2257 50 -0.1 97
OX.MPRI.HHZ. 2021-09-18T21:32:30.45 0.3 undecidable manual S 236 0.1898 50 -0.13 73
OX.PLRO.HHZ. 2021-09-18T21:32:30.94 0.3 undecidable manual S 347 0.2068 50 -0.14 72
OX.FUSE.HHZ. 2021-09-18T21:32:30.07 0.1 undecidable manual S 294 0.1619 121 0.39 93
IV.FVI.HHZ. 2021-09-18T21:32:30.64 0.3 undecidable manual P 310 0.3894 50 0.1 70
IV.STAL.HHZ. 2021-09-18T21:32:29.67 0.1 undecidable manual P 256 0.3597 50 -0.36 89
OX.CLUD.HHZ. 2021-09-18T21:32:28.24 0.3 undecidable manual P 296 0.2545 50 0 73
OX.ACOM.HHZ. 2021-09-18T21:32:28.99 0.1 undecidable manual P 46 0.2869 50 0.21 92
IV.PTCC.HHZ. 2021-09-18T21:32:27.82 0.1 undecidable manual S 58 0.1124 131 -0.31 93
RF.GEPF.HHZ. 2021-09-18T21:32:27.46 0.1 undecidable manual S 216 0.0899 137 -0.04 98
OX.MPRI.HHZ. 2021-09-18T21:32:27.23 0.1 undecidable manual P 236 0.1898 50 0.1 96
NI.VINO.HHZ. 2021-09-18T21:32:27.76 0.1 undecidable manual S 156 0.1025 133 -0.08 98
OX.PLRO.HHZ. 2021-09-18T21:32:27.36 0.1 negative manual P 347 0.2068 50 -0.05 97
NI.PALA.HHZ. 2021-09-18T21:32:27.73 0.1 undecidable manual P 243 0.2257 50 -0.02 98
OX.FUSE.HHZ. 2021-09-18T21:32:26.70 0.1 undecidable manual P 294 0.1619 121 0.09 98
IV.PTCC.HHZ. 2021-09-18T21:32:25.74 0.1 undecidable manual P 58 0.1124 131 0.03 100
RF.GEPF.HHZ. 2021-09-18T21:32:25.54 0.1 positive manual P 216 0.0899 137 0.19 98
NI.VINO.HHZ. 2021-09-18T21:32:25.76 0.1 negative manual P 156 0.1025 133 0.21 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
RF.GEPF.HHN. ML:1.6 0.000508 0.22 AML other m 2021-09-18T21:32:27.92
NI.VINO.HHN. ML:1.9 0.000881 1.54 AML other m 2021-09-18T21:32:27.92
IV.PTCC.HHE. ML:1.6 0.000477 1.58 AML other m 2021-09-18T21:32:27.94
NI.VINO.HHE. ML:1.7 0.0006 0.18 AML other m 2021-09-18T21:32:27.95
RF.GEPF.HHE. ML:1.4 0.0003305 1.36 AML other m 2021-09-18T21:32:28.14
IV.PTCC.HHN. ML:1.7 0.000483 0.12 AML other m 2021-09-18T21:32:28.21
OX.MPRI.HNN. ML:1.6 0.000269 0.38 AML other m 2021-09-18T21:32:31.28
OX.MPRI.HHN. ML:1.7 0.00034 0.38 AML other m 2021-09-18T21:32:31.28
OX.PLRO.HHE. ML:1.8 0.00036 0.1 AML other m 2021-09-18T21:32:31.53
OX.MPRI.HHE. ML:1.5 0.0002145 1.16 AML other m 2021-09-18T21:32:31.32
OX.MPRI.HNE. ML:1.4 0.00018 1.18 AML other m 2021-09-18T21:32:31.31
OX.PLRO.HHN. ML:1.7 0.000348 0.16 AML other m 2021-09-18T21:32:32.24
NI.PALA.HHN. ML:1.7 0.000299 0.48 AML other m 2021-09-18T21:32:32.61
NI.PALA.HHE. ML:1.6 0.0002595 0.46 AML other m 2021-09-18T21:32:32.70
OX.CLUD.HHE. ML:1.4 0.0001395 0.66 AML other m 2021-09-18T21:32:33.40
OX.CLUD.HHN. ML:1.3 9.925E-5 0.68 AML other m 2021-09-18T21:32:33.79
OX.ACOM.HNE. ML:1.7 0.0002065 0.52 AML other m 2021-09-18T21:32:34.49
OX.ACOM.HNN. ML:1.5 0.0001455 0.6 AML other m 2021-09-18T21:32:34.05
OX.ACOM.HHN. ML:1.5 0.0001535 0.18 AML other m 2021-09-18T21:32:34.26
OX.ACOM.HHE. ML:1.7 0.000211 0.7 AML other m 2021-09-18T21:32:35.48
IV.STAL.HHE. ML:1.3 6.52E-5 0.82 AML other m 2021-09-18T21:32:35.77
IV.STAL.HHN. ML:1.3 7.335E-5 0.12 AML other m 2021-09-18T21:32:35.84
IV.FVI.HHN. ML:1.5 9.84E-5 0.48 AML other m 2021-09-18T21:32:36.88
IV.FVI.HHE. ML:1.8 0.00018 1.68 AML other m 2021-09-18T21:32:36.98
OX.MLN.HHE. ML:0.8 1.625E-5 0.14 AML other m 2021-09-18T21:32:40.27
OX.SABO.HHE. ML:1.8 0.0001635 0.28 AML other m 2021-09-18T21:32:41.28
OX.SABO.HNE. ML:2.5 0.0007535 0.88 AML other m 2021-09-18T21:32:41.87
OX.MLN.HHN. ML:1 2.365E-5 0.26 AML other m 2021-09-18T21:32:41.64
OX.SABO.HNN. ML:2.6 0.000952 0.82 AML other m 2021-09-18T21:32:41.87
OX.SABO.HHN. ML:2 0.000256 0.84 AML other m 2021-09-18T21:32:41.87
MN.TRI.HHN. ML:1.1 1.62E-5 0.92 AML other m 2021-09-18T21:32:53.80
MN.TRI.HHE. ML:1.4 2.795E-5 1.44 AML other m 2021-09-18T21:32:54.07
OX.VARN.HHN. ML:1.7 5.77E-5 0.76 AML other m 2021-09-18T21:32:56.28
OX.VARN.HHE. ML:1.7 5.125E-5 0.32 AML other m 2021-09-18T21:32:57.63
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download