Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 12-01-2021 and time 13:17:01 (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 12:17:01 (UTC)
  • 12-01-2021 13:17:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.2030, 12.9950 at 10 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
Forgaria nel Friuli UD 3 1786 4695
Pinzano al Tagliamento PN 4 1525 6220
Vito d'Asio PN 4 769 6989
San Daniele del Friuli UD 5 8013 15002
Majano UD 7 5945 20947
Clauzetto PN 7 380 21327
Castelnovo del Friuli PN 7 880 22207
Osoppo UD 9 2936 25143
Rive d'Arcano UD 9 2444 27587
Travesio PN 9 1776 29363
Buja UD 10 6563 35926
Trasaghis UD 11 2227 38153
Colloredo di Monte Albano UD 12 2223 40376
Coseano UD 12 2187 42563
Fagagna UD 12 6385 48948
Spilimbergo PN 12 12124 61072
Treppo Grande UD 13 1708 62780
Artegna UD 13 2885 65665
Dignano UD 13 2317 67982
Sequals PN 14 2200 70182
Moruzzo UD 14 2456 72638
San Vito di Fagagna UD 14 1671 74309
Gemona del Friuli UD 14 10964 85273
Magnano in Riviera UD 14 2336 87609
Cassacco UD 15 2938 90547
Bordano UD 15 754 91301
Martignacco UD 16 6924 98225
Montenars UD 16 538 98763
Flaibano UD 16 1156 99919
Meduno PN 16 1574 101493
Arba PN 17 1309 102802
Pagnacco UD 17 5044 107846
Mereto di Tomba UD 17 2648 110494
Cavasso Nuovo PN 17 1525 112019
Tricesimo UD 17 7600 119619
Tarcento UD 18 9012 128631
Tramonti di Sotto PN 18 387 129018
Venzone UD 18 2117 131135
Fanna PN 19 1583 132718
Cavazzo Carnico UD 19 1052 133770
Tramonti di Sopra PN 20 321 134091
San Giorgio della Richinvelda PN 20 4650 138741

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NW of Udine (99169 inhabitants)
38 Km NE of Pordenone (51229 inhabitants)
83 Km NE of Treviso (83731 inhabitants)
86 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
12:17:01		 46.2027 12.9948 10 2021-07-12
16:55:06		 Bollettino Sismico Italiano INGV 89144921
Reviewed
Rev100 		ML 1.4 2021-01-12
12:17:01		 46.2017 12.9943 11 2021-01-12
12:26:41		 Sala Sismica INGV-Roma 86202601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-12 12:17:01 ± 0.14
Latitude 46.2027 ± 0.0090
Longitude 12.9948 ± 0.0065
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89144921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1024
Semi-minor axis of confidence ellipse (meter) 340
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 358
Circular confidence region, given by single value of horizontal uncertainty (meter) 1020.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 206
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) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.03867
Epicentral distance of station farthest from the epicenter (degree) 0.39570
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 89144921
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-24 14:08:42

ML:1.4

Field Value
Value 1.4
Uncertainty 0.0
Num. used stations 5
Type of magnitude ML
Reference to an origin 86202601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-12 12:26:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OX.CIMO.HHZ. 2021-01-12T12:17:15.64 0.6 undecidable manual S 286 43.9227 50 0.13 46
IV.STAL.HHZ. 2021-01-12T12:17:10.57 0.6 undecidable manual S 286 22.755 113 0.9 38
OX.CIMO.HHZ. 2021-01-12T12:17:09.26 0.3 undecidable manual P 286 43.9227 50 -0.15 69
NI.VINO.HHZ. 2021-01-12T12:17:09.96 0.6 undecidable manual S 75 22.2555 114 0.44 45
OX.FUSE.HHZ. 2021-01-12T12:17:09.91 0.3 undecidable manual S 1 23.4543 113 0 74
OX.BOO.HNZ. 2021-01-12T12:17:07.67 0.6 undecidable manual S 31 15.1737 123 0.31 47
OX.FUSE.HHZ. 2021-01-12T12:17:06.02 0.1 undecidable manual P 1 23.4543 113 -0.15 96
RF.GEPF.HHZ. 2021-01-12T12:17:06.90 0.6 undecidable manual S 54 13.6752 126 -0.01 50
OX.CLUD.HHZ. 2021-01-12T12:17:06.91 0.3 undecidable manual P 343 29.5482 50 -0.29 69
IV.STAL.HHZ. 2021-01-12T12:17:06.11 0.1 undecidable manual P 286 22.755 113 0.07 97
NI.VINO.HHZ. 2021-01-12T12:17:05.96 0.3 undecidable manual P 75 22.2555 114 0.01 74
OX.BAD.HNZ. 2021-01-12T12:17:05.38 0.3 undecidable manual P 80 19.4694 117 -0.06 74
NI.PALA.HHZ. 2021-01-12T12:17:05.56 0.6 undecidable manual S 311 7.1928 144 0.25 48
OX.BOO.HNZ. 2021-01-12T12:17:04.88 0.3 undecidable manual P 31 15.1737 123 0.18 72
OX.MPRI.HHZ. 2021-01-12T12:17:04.25 0.3 undecidable manual S 353 4.2957 157 -0.55 67
RF.GEPF.HHZ. 2021-01-12T12:17:04.64 0.1 undecidable manual P 54 13.6752 126 0.19 96
NI.PALA.HHZ. 2021-01-12T12:17:03.45 0.1 undecidable manual P 311 7.1928 144 -0.07 100
OX.MPRI.HHZ. 2021-01-12T12:17:02.90 0.1 undecidable manual P 353 4.2957 157 -0.33 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.MPRI.HHE. ML:1.3 0.0003801666 0.4608 AML other m 2021-01-12T12:17:04.57
OX.MPRI.HNN. ML:1.0 0.00017088209999999997 0.5632 AML other m 2021-01-12T12:17:04.89
IV.STAL.HHN. ML:1.3 0.0001275 0.14 AML other m 2021-01-12T12:17:10.86
IV.STAL.HNN. ML:1.4 0.00017169955 0.2304 AML other m 2021-01-12T12:17:11.18
IV.STAL.HNE. ML:1.4 0.00015208150000000002 0.288 AML other m 2021-01-12T12:17:11.16
IV.STAL.HHE. ML:1.4 0.000144 0.26 AML other m 2021-01-12T12:17:11.54
OX.CIMO.HHN. ML:0.5 0.000010251400500000001 0.2816 AML other m 2021-01-12T12:17:15.98
OX.CIMO.HHE. ML:0.2 0.000006269016 0.2752 AML other m 2021-01-12T12:17:17.31
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