Earthquake with magnitude of ML 1.0 on date 28-09-2022 and time 22:36:51 (Italy) in region 2 km S Ovaro (UD)

A magnitude ML 1.0 earthquake occured in region: 2 km S Ovaro (UD), on

  • 28-09-2022 20:36:51 (UTC)
  • 28-09-2022 22:36:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.4630, 12.8690 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
Ovaro UD 2 1922 1922
Raveo UD 3 458 2380
Comeglians UD 6 516 2896
Enemonzo UD 6 1319 4215
Lauco UD 7 729 4944
Villa Santina UD 7 2233 7177
Socchieve UD 7 908 8085
Preone UD 8 246 8331
Ampezzo UD 8 1006 9337
Ravascletto UD 8 536 9873
Prato Carnico UD 8 904 10777
Rigolato UD 10 448 11225
Sutrio UD 11 1332 12557
Cercivento UD 12 679 13236
Arta Terme UD 12 2171 15407
Zuglio UD 12 595 16002
Sauris UD 12 416 16418
Verzegnis UD 13 863 17281
Tolmezzo UD 13 10440 27721
Paluzza UD 14 2217 29938
Forni Avoltri UD 15 588 30526
Treppo Carnico UD 16 618 31144
Forni di Sotto UD 17 600 31744
Cavazzo Carnico UD 17 1052 32796
Ligosullo UD 18 116 32912
Tramonti di Sopra PN 18 321 33233
Sappada BL 18 1317 34550

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km NW of Udine (99169 inhabitants)
59 Km N of Pordenone (51229 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.0 2022-09-28
20:36:51
46.4632 12.8688 8 2022-09-28
20:42:45
Sala Sismica INGV-Roma 110269431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-28 20:36:51 ± 0.1
Latitude 46.4632 ± 0.0054
Longitude 12.8688 ± 0.0078
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 110269431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 540
Semi-minor axis of confidence ellipse (meter) 421
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 129
Circular confidence region, given by single value of horizontal uncertainty (meter) 540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.01079
Epicentral distance of station farthest from the epicenter (degree) 0.34984
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 110269431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-28 20:42:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
NI.VINO.HHZ. 2022-09-28T20:37:04.78 0.3 undecidable manual S 127 0.3498 50 -0.29 66
OX.CIMO.HHZ. 2022-09-28T20:37:03.84 0.3 undecidable manual S 243 0.3292 50 -0.62 61
RF.GEPF.HHZ. 2022-09-28T20:37:02.13 0.6 undecidable manual S 135 0.2644 106 -0.12 47
OX.MPRI.HHZ. 2022-09-28T20:37:01.17 0.6 undecidable manual S 160 0.2365 108 -0.06 47
IV.STAL.HHZ. 2022-09-28T20:37:00.98 0.3 undecidable manual S 208 0.2302 108 -0.02 72
OX.PLRO.HHZ. 2022-09-28T20:37:00.11 0.3 undecidable manual S 66 0.2104 110 -0.16 70
OX.CIMO.HHZ. 2022-09-28T20:36:59.49 0.1 undecidable manual P 243 0.3292 50 0.44 86
NI.VINO.HHZ. 2022-09-28T20:36:59.23 0.1 undecidable manual P 127 0.3498 50 -0.18 91
RF.GEPF.HHZ. 2022-09-28T20:36:58.26 0.1 undecidable manual P 135 0.2644 106 0.49 86
IV.STAL.HHZ. 2022-09-28T20:36:57.15 0.1 undecidable manual P 208 0.2302 108 0.1 94
IV.FVI.HHE. 2022-09-28T20:36:57.67 0.3 undecidable manual S 336 0.1466 117 -0.34 68
OX.MPRI.HHZ. 2022-09-28T20:36:57.23 0.1 undecidable manual P 160 0.2365 108 0.04 95
OX.PLRO.HHZ. 2022-09-28T20:36:56.79 0.1 undecidable manual P 66 0.2104 110 0.16 93
OX.FUSE.HHZ. 2022-09-28T20:36:56.40 0.3 undecidable manual S 118 0.1034 126 -0.19 71
IV.FVI.HHE. 2022-09-28T20:36:55.66 0.1 undecidable manual P 336 0.1466 117 0.33 91
OX.FUSE.HHZ. 2022-09-28T20:36:54.82 0.3 positive manual P 118 0.1034 126 0.32 69
OX.CLUD.HHZ. 2022-09-28T20:36:53.82 0.6 undecidable manual S 126 0.0108 172 -0.77 40
OX.CLUD.HHZ. 2022-09-28T20:36:53.34 0.1 positive manual P 126 0.0108 172 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.CLUD.HNN. ML:0.0 0.000522 0.98 AML other m 2022-09-28T20:36:53.95
OX.CLUD.HHN. ML:0.0 0.0005769999999999999 0.96 AML other m 2022-09-28T20:36:53.95
OX.CLUD.HHE. ML:0.0 0.0006355 1.4 AML other m 2022-09-28T20:36:53.89
OX.CLUD.HNE. ML:0.0 0.000615 1.4 AML other m 2022-09-28T20:36:53.89
OX.FUSE.HHN. ML:1.1 0.0001535 0.64 AML other m 2022-09-28T20:36:56.85
OX.FUSE.HHE. ML:0.9 0.00010899999999999999 1.66 AML other m 2022-09-28T20:36:57.01
OX.PLRO.HHN. ML:1.1 0.0000791 0.18 AML other m 2022-09-28T20:37:00.50
OX.PLRO.HHE. ML:1.0 0.00005855 0.42 AML other m 2022-09-28T20:37:01.21
IV.STAL.HHE. ML:1.2 0.00008655 1.1 AML other m 2022-09-28T20:37:01.31
IV.STAL.HHN. ML:0.9 0.000052249999999999996 1.36 AML other m 2022-09-28T20:37:02.80
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download