Earthquake with magnitude of ML 0.4 on date 24-02-2021 and time 07:20:52 (UTC) in region 3 km E Ovaro (UD)

A magnitude ML 0.4 earthquake occured in region: 3 km E Ovaro (UD), on

  • 24-02-2021 07:20:52 (UTC)
  • 24-02-2021 08:20:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.48, 12.91 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 3 1922 1922
Comeglians UD 5 516 2438
Ravascletto UD 5 536 2974
Raveo UD 6 458 3432
Lauco UD 7 729 4161
Villa Santina UD 7 2233 6394
Sutrio UD 8 1332 7726
Enemonzo UD 8 1319 9045
Cercivento UD 8 679 9724
Rigolato UD 9 448 10172
Arta Terme UD 9 2171 12343
Prato Carnico UD 9 904 13247
Zuglio UD 10 595 13842
Preone UD 10 246 14088
Paluzza UD 10 2217 16305
Socchieve UD 10 908 17213
Ampezzo UD 11 1006 18219
Tolmezzo UD 12 10440 28659
Verzegnis UD 12 863 29522
Treppo Carnico UD 12 618 30140
Ligosullo UD 15 116 30256
Sauris UD 15 416 30672
Forni Avoltri UD 15 588 31260
Cavazzo Carnico UD 16 1052 32312
Paularo UD 17 2623 34935
Amaro UD 19 823 35758
Sappada BL 20 1317 37075

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km NW of Udine (99169 inhabitants)
61 Km NE 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
Md 1.5
ML 0.4
2021-02-24
07:20:52
46.48 12.91 6 2021-02-24
07:58:24
Sala Sismica INGV-Roma 87438711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-24 07:20:52 ± 0.11
Latitude 46.48 ± 0.00
Longitude 12.91 ± 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 87438711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 429
Semi-minor axis of confidence ellipse (meter) 85
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.02788
Epicentral distance of station farthest from the epicenter (degree) 0.25721
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 87438711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-24 07:58:24

Md:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 3
Type of magnitude Md
Reference to an origin 87438711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-24 07:58:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.STAL.HNZ. 2021-02-24T07:21:02.83 0.6 undecidable manual S 212 0.2572 102 0.17 48
IV.STAL.HNZ. 2021-02-24T07:20:58.20 0.1 undecidable manual P 212 0.2572 102 -0.19 96
IV.FVI.HHZ. 2021-02-24T07:20:58.40 0.6 undecidable manual S 324 0.1457 111 -0.14 50
OX.FUSE.HHZ. 2021-02-24T07:20:56.68 0.6 undecidable manual S 135 0.0926 121 0 52
OX.PLRO.HHE. 2021-02-24T07:20:56.68 0.1 undecidable manual P 67 0.1808 107 -0.07 100
IV.FVI.HHZ. 2021-02-24T07:20:56.22 0.3 positive manual P 324 0.1457 111 0.22 73
OX.FUSE.HHZ. 2021-02-24T07:20:55.04 0.3 positive manual P 135 0.0926 121 0.11 76
OX.CLUD.HHZ. 2021-02-24T07:20:54.83 0.6 undecidable manual S 217 0.0279 153 -0.07 51
OX.CLUD.HHZ. 2021-02-24T07:20:53.97 0.6 negative manual P 217 0.0279 153 0.06 52
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.CLUD.HHN. ML:0 0.000101 0.58 AML other m 2021-02-24T07:20:56.34
OX.CLUD.HHE. ML:0 0.000151 0.62 AML other m 2021-02-24T07:20:57.35
IV.FVI.HHE. ML:0.4 2.4945625E-5 0.1792 AML other m 2021-02-24T07:20:58.75
IV.FVI.HHN. ML:0.3 1.999566E-5 0.24 AML other m 2021-02-24T07:20:59.29
OX.CLUD.HHZ. Md:1.4 14 END duration s
OX.FUSE.HHZ. Md:1.5 14 END duration s
IV.FVI.HHZ. Md:1.4 13 END duration s
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