Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 12-01-2021 and time 16:48:23 (Italy) in region 3 km NE Ragogna (UD)

A magnitude ML 1.2 earthquake occured in region: 3 km NE Ragogna (UD), on

  • 12-01-2021 15:48:23 (UTC)
  • 12-01-2021 16:48:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.1940, 13.0050 at 11 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Ragogna UD 3 2909 2909
San Daniele del Friuli UD 4 8013 10922
Forgaria nel Friuli UD 4 1786 12708
Pinzano al Tagliamento PN 5 1525 14233
Majano UD 6 5945 20178
Vito d'Asio PN 6 769 20947
Castelnovo del Friuli PN 8 880 21827
Rive d'Arcano UD 8 2444 24271
Clauzetto PN 8 380 24651
Osoppo UD 9 2936 27587
Buja UD 10 6563 34150
Travesio PN 10 1776 35926
Colloredo di Monte Albano UD 11 2223 38149
Coseano UD 11 2187 40336
Fagagna UD 11 6385 46721
Trasaghis UD 11 2227 48948
Spilimbergo PN 12 12124 61072
Treppo Grande UD 12 1708 62780
Moruzzo UD 12 2456 65236
San Vito di Fagagna UD 12 1671 66907
Artegna UD 13 2885 69792
Dignano UD 13 2317 72109
Magnano in Riviera UD 14 2336 74445
Gemona del Friuli UD 14 10964 85409
Sequals PN 14 2200 87609
Cassacco UD 14 2938 90547
Martignacco UD 14 6924 97471
Flaibano UD 15 1156 98627
Montenars UD 15 538 99165
Bordano UD 16 754 99919
Pagnacco UD 16 5044 104963
Mereto di Tomba UD 16 2648 107611
Tricesimo UD 16 7600 115211
Tarcento UD 17 9012 124223
Meduno PN 17 1574 125797
Arba PN 17 1309 127106
Cavasso Nuovo PN 18 1525 128631
Venzone UD 19 2117 130748
Tramonti di Sotto PN 19 387 131135
Reana del Rojale UD 19 4966 136101
Tavagnacco UD 19 14910 151011
Fanna PN 19 1583 152594
San Giorgio della Richinvelda PN 20 4650 157244
Cavazzo Carnico UD 20 1052 158296

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of Udine (99169 inhabitants)
38 Km NE of Pordenone (51229 inhabitants)
83 Km NE of Treviso (83731 inhabitants)
85 Km NW of Trieste (204420 inhabitants)
99 Km NE of Venezia (263352 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
Bulletin
Rev1000 		ML 1.2 2021-01-12
15:48:23		 46.1945 13.0053 11 2021-07-12
16:55:12		 Bollettino Sismico Italiano INGV 90451881
Reviewed
Rev100 		ML 1.2 2021-01-12
15:48:23		 46.1942 13.0002 10 2021-01-12
15:56:57		 Sala Sismica INGV-Roma 86206831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-12 15:48:23 ± 0.23
Latitude 46.1945 ± 0.0126
Longitude 13.0053 ± 0.0091
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90451881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1364
Semi-minor axis of confidence ellipse (meter) 283
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 180
Circular confidence region, given by single value of horizontal uncertainty (meter) 1360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 212
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 0.27609
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 86206831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-12 15:56:57

ML:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 90451881
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-24 14:27:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OX.CLUD.HHZ. 2021-01-12T15:48:34.27 0.3 undecidable manual S 342 30.6471 50 0.17 73
IV.STAL.HHZ. 2021-01-12T15:48:33.01 0.3 undecidable manual S 288 23.754 50 0.74 63
NI.VINO.HHZ. 2021-01-12T15:48:32.35 0.6 undecidable manual S 72 21.7671 50 0.62 42
OX.FUSE.HHZ. 2021-01-12T15:48:32.35 0.6 undecidable manual S 359 24.3534 50 -0.08 48
OX.BOO.HNZ. 2021-01-12T15:48:30.27 0.6 undecidable manual S 27 15.5733 124 0.38 46
OX.CLUD.HHZ. 2021-01-12T15:48:29.35 0.1 undecidable manual P 342 30.6471 50 -0.21 93
OX.FUSE.HHZ. 2021-01-12T15:48:28.39 0.1 undecidable manual P 359 24.3534 50 -0.21 94
NI.VINO.HHZ. 2021-01-12T15:48:28.22 0.3 undecidable manual P 72 21.7671 50 0.03 74
IV.STAL.HHZ. 2021-01-12T15:48:28.51 0.1 undecidable manual P 288 23.754 50 0.01 99
NI.PALA.HHZ. 2021-01-12T15:48:28.75 0.6 undecidable manual S 312 8.3805 142 0.71 41
OX.BAD.HNZ. 2021-01-12T15:48:27.64 0.3 undecidable manual P 76 18.87 119 -0.04 75
OX.BOO.HNZ. 2021-01-12T15:48:27.23 0.1 undecidable manual P 27 15.5733 124 0.1 99
RF.GEPF.HHZ. 2021-01-12T15:48:26.98 0.3 undecidable manual P 49 13.5753 128 0.18 73
OX.MPRI.HHZ. 2021-01-12T15:48:26.74 0.6 undecidable manual S 345 5.2947 153 -0.72 44
OX.MPRI.HHZ. 2021-01-12T15:48:25.38 0.1 undecidable manual P 345 5.2947 153 -0.35 97
NI.PALA.HHZ. 2021-01-12T15:48:25.90 0.1 undecidable manual P 312 8.3805 142 -0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
RF.GEPF.HHN. ML:1.0 0.0000915 1.72 AML other m 2021-01-12T15:48:31.05
IV.STAL.HHN. ML:1.5 0.0002035 0.18 AML other m 2021-01-12T15:48:33.35
IV.STAL.HNE. ML:1.5 0.00020057320000000002 0.1536 AML other m 2021-01-12T15:48:33.57
RF.GEPF.HHE. ML:0.8 0.00006882106 0.384 AML other m 2021-01-12T15:48:33.89
IV.STAL.HNN. ML:1.7 0.00029089785 0.1536 AML other m 2021-01-12T15:48:33.80
IV.STAL.HHE. ML:1.6 0.0002175 1.76 AML other m 2021-01-12T15:48:34.90
NI.VINO.HHE. ML:0.7 0.00003555 0.58 AML other m 2021-01-12T15:48:34.61
NI.VINO.HHN. ML:0.8 0.00004025 0.4 AML other m 2021-01-12T15:48:37.20
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