Earthquake with magnitude of ML 0.5 on date 22-09-2020 and time 08:24:50 (UTC) in region 2 km W Ovaro (UD)

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

  • 22-09-2020 08:24:50 (UTC)
  • 22-09-2020 10:24:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.48, 12.84 at 6 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
Ovaro UD 2 1922 1922
Comeglians UD 4 516 2438
Prato Carnico UD 5 904 3342
Raveo UD 6 458 3800
Rigolato UD 7 448 4248
Ravascletto UD 8 536 4784
Ampezzo UD 8 1006 5790
Enemonzo UD 9 1319 7109
Socchieve UD 9 908 8017
Lauco UD 10 729 8746
Villa Santina UD 10 2233 10979
Preone UD 10 246 11225
Sauris UD 11 416 11641
Sutrio UD 12 1332 12973
Cercivento UD 12 679 13652
Forni Avoltri UD 12 588 14240
Arta Terme UD 14 2171 16411
Paluzza UD 14 2217 18628
Zuglio UD 14 595 19223
Sappada BL 15 1317 20540
Verzegnis UD 16 863 21403
Tolmezzo UD 16 10440 31843
Treppo Carnico UD 16 618 32461
Forni di Sotto UD 17 600 33061
Ligosullo UD 19 116 33177
Tramonti di Sopra PN 20 321 33498
Cavazzo Carnico UD 20 1052 34550

Municipalities with at least 50000 inhabitants

An earthquake occurred to
56 Km NW of Udine (99169 inhabitants)
61 Km N of Pordenone (51229 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
Reviewed
Rev100
ML 0.5 2020-09-22
08:24:50
46.48 12.84 6 2020-09-22
08:31:37
Sala Sismica INGV-Roma 83125351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-22 08:24:50 ± 0.12
Latitude 46.48 ± 0.00
Longitude 12.84 ± 0.01
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83125351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 369
Semi-minor axis of confidence ellipse (meter) 48
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 307
Circular confidence region, given by single value of horizontal uncertainty (meter) 370
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.03777
Epicentral distance of station farthest from the epicenter (degree) 0.24282
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
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 83125351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-22 08:31:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.STAL.HHZ. 2020-09-22T08:24:59.70 0.3 undecidable manual S 202 0.2428 103 -0.1 72
OX.PLRO.HNZ. 2020-09-22T08:24:58.91 0.6 undecidable manual S 73 0.2185 104 0 49
IV.FVI.HHZ. 2020-09-22T08:24:55.05 0.3 undecidable manual S 339 0.1205 115 -0.26 71
OX.PLRO.HNZ. 2020-09-22T08:24:55.68 0.6 undecidable manual P 73 0.2185 104 0.44 45
OX.FUSE.HHZ. 2020-09-22T08:24:55.37 0.3 undecidable manual S 123 0.1286 113 -0.26 71
IV.STAL.HHZ. 2020-09-22T08:24:55.62 0.1 undecidable manual P 202 0.2428 103 -0.13 96
NI.PURA.HHZ. 2020-09-22T08:24:54.42 0.3 undecidable manual S 230 0.0917 121 0.08 75
IV.FVI.HHZ. 2020-09-22T08:24:53.19 0.1 undecidable manual P 339 0.1205 115 0.03 100
OX.FUSE.HHZ. 2020-09-22T08:24:53.32 0.1 undecidable manual P 123 0.1286 113 -0.02 100
NI.PURA.HHZ. 2020-09-22T08:24:52.77 0.1 undecidable manual P 230 0.0917 121 0.17 98
OX.CLUD.HHZ. 2020-09-22T08:24:52.84 0.3 undecidable manual S 137 0.0378 146 0.04 76
OX.CLUD.HHZ. 2020-09-22T08:24:51.81 0.1 undecidable manual P 137 0.0378 146 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.CLUD.HNE. ML:0 0.00015064406 0.0768 AML other m 2020-09-22T08:24:52.91
OX.CLUD.HHE. ML:0 0.0001756873 0.0768 AML other m 2020-09-22T08:24:52.91
OX.CLUD.HHN. ML:0 0.00010214402 0.3584 AML other m 2020-09-22T08:24:52.76
OX.CLUD.HNN. ML:0 9.891617E-5 0.3584 AML other m 2020-09-22T08:24:52.76
IV.FVI.HHN. ML:0.5 3.5577935E-5 0.0832 AML other m 2020-09-22T08:24:55.40
IV.FVI.HHE. ML:0.6 4.8185005E-5 0.1408 AML other m 2020-09-22T08:24:55.17
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