Earthquake with magnitude of ML 0.5 on date 17-10-2023 and time 03:48:25 (UTC) in region 2 km E Tolmezzo (UD)

A magnitude ML 0.5 earthquake occured in region: 2 km E Tolmezzo (UD), on

  • 17-10-2023 03:48:25 (UTC)
  • 17-10-2023 05:48:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.4120, 13.0410 at 7 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
Tolmezzo UD 2 10440 10440
Verzegnis UD 4 863 11303
Cavazzo Carnico UD 5 1052 12355
Zuglio UD 6 595 12950
Amaro UD 6 823 13773
Arta Terme UD 7 2171 15944
Lauco UD 8 729 16673
Villa Santina UD 9 2233 18906
Venzone UD 11 2117 21023
Bordano UD 12 754 21777
Sutrio UD 12 1332 23109
Moggio Udinese UD 12 1714 24823
Enemonzo UD 12 1319 26142
Paluzza UD 13 2217 28359
Preone UD 13 246 28605
Raveo UD 13 458 29063
Cercivento UD 14 679 29742
Treppo Carnico UD 14 618 30360
Resiutta UD 14 309 30669
Trasaghis UD 15 2227 32896
Ligosullo UD 15 116 33012
Paularo UD 15 2623 35635
Ravascletto UD 16 536 36171
Ovaro UD 16 1922 38093
Socchieve UD 17 908 39001
Gemona del Friuli UD 17 10964 49965
Comeglians UD 18 516 50481
Osoppo UD 18 2936 53417
Ampezzo UD 19 1006 54423

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NW of Udine (99169 inhabitants)
59 Km NE of Pordenone (51229 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.5 2023-10-17
03:48:25
46.4115 13.0412 7 2023-10-17
04:12:59
Sala Sismica INGV-Roma 122140611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-17 03:48:25 ± 0.09
Latitude 46.4115 ± 0.0018
Longitude 13.0412 ± 0.0026
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 122140611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 216
Semi-minor axis of confidence ellipse (meter) 116
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 105
Circular confidence region, given by single value of horizontal uncertainty (meter) 220.0
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 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0.02788
Epicentral distance of station farthest from the epicenter (degree) 0.21584
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 122140611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-17 04:12:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTCC.HHZ. 2023-10-17T03:48:33.63 0.6 undecidable manual S 91 23.9538 105 -0.02 49
OX.MPRI.HHZ. 2023-10-17T03:48:32.37 0.6 undecidable manual S 192 19.3695 109 0.24 47
NI.PALA.HHZ. 2023-10-17T03:48:32.36 0.6 undecidable manual S 206 20.5683 108 -0.16 48
OX.PLRO.HHZ. 2023-10-17T03:48:31.41 0.6 undecidable manual S 28 17.2716 111 -0.05 49
OX.CLUD.HHZ. 2023-10-17T03:48:30.09 0.6 undecidable manual S 292 13.1757 117 -0.06 50
IV.PTCC.HHZ. 2023-10-17T03:48:29.97 1.0 positive manual P 91 23.9538 105 -0.04 24
OX.MPRI.HHZ. 2023-10-17T03:48:29.12 1.0 negative manual P 192 19.3695 109 -0.01 25
NI.PALA.HHZ. 2023-10-17T03:48:29.15 1.0 positive manual P 206 20.5683 108 -0.2 24
OX.BOO.HHE. 2023-10-17T03:48:29.54 0.6 undecidable manual S 157 11.0778 121 0.02 50
OX.CLUD.HHZ. 2023-10-17T03:48:28.12 1.0 negative manual P 292 13.1757 117 0.13 24
OX.PLRO.HHZ. 2023-10-17T03:48:28.92 1.0 undecidable manual P 28 17.2716 111 0.17 24
OX.BOO.HHE. 2023-10-17T03:48:27.56 0.1 undecidable manual P 157 11.0778 121 -0.06 100
OX.FUSE.HHZ. 2023-10-17T03:48:27.47 0.6 undecidable manual S 276 3.0969 155 -0.09 50
OX.FUSE.HHZ. 2023-10-17T03:48:26.60 0.1 positive manual P 276 3.0969 155 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.PLRO.HHN. ML:0.6 0.00004245 0.58 AML other m 2023-10-17T03:48:31.52
OX.PLRO.HHE. ML:0.4 0.0000243 0.86 AML other m 2023-10-17T03:48:32.65
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