Earthquake with magnitude of ML 1.0 on date 19-01-2021 and time 00:09:18 (Italy) in region 2 km E Ragogna (UD)

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

  • 18-01-2021 23:09:18 (UTC)
  • 19-01-2021 00:09:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.18, 13 at 10 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
Ragogna UD 2 2909 2909
San Daniele del Friuli UD 3 8013 10922
Pinzano al Tagliamento PN 4 1525 12447
Forgaria nel Friuli UD 5 1786 14233
Majano UD 6 5945 20178
Vito d'Asio PN 7 769 20947
Rive d'Arcano UD 7 2444 23391
Castelnovo del Friuli PN 8 880 24271
Clauzetto PN 8 380 24651
Coseano UD 10 2187 26838
Travesio PN 10 1776 28614
Fagagna UD 10 6385 34999
Buja UD 10 6563 41562
Osoppo UD 10 2936 44498
Spilimbergo PN 11 12124 56622
Colloredo di Monte Albano UD 11 2223 58845
San Vito di Fagagna UD 11 1671 60516
Dignano UD 12 2317 62833
Moruzzo UD 12 2456 65289
Treppo Grande UD 12 1708 66997
Trasaghis UD 13 2227 69224
Sequals PN 13 2200 71424
Flaibano UD 14 1156 72580
Martignacco UD 14 6924 79504
Artegna UD 14 2885 82389
Cassacco UD 15 2938 85327
Magnano in Riviera UD 15 2336 87663
Gemona del Friuli UD 15 10964 98627
Mereto di Tomba UD 15 2648 101275
Pagnacco UD 16 5044 106319
Montenars UD 16 538 106857
Arba PN 17 1309 108166
Tricesimo UD 17 7600 115766
Meduno PN 17 1574 117340
Bordano UD 17 754 118094
Tarcento UD 18 9012 127106
Cavasso Nuovo PN 18 1525 128631
San Giorgio della Richinvelda PN 18 4650 133281
Fanna PN 19 1583 134864
Tavagnacco UD 19 14910 149774
Sedegliano UD 19 3868 153642
Reana del Rojale UD 19 4966 158608
Tramonti di Sotto PN 19 387 158995
Venzone UD 20 2117 161112

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of Udine (99169 inhabitants)
36 Km NE of Pordenone (51229 inhabitants)
82 Km NE of Treviso (83731 inhabitants)
84 Km NW of Trieste (204420 inhabitants)
98 Km NE of Venezia (263352 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 1.0 2021-01-18
23:09:18
46.18 13 10 2021-01-18
23:32:13
Sala Sismica INGV-Roma 86362371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-18 23:09:18 ± 0.23
Latitude 46.18 ± 0.01
Longitude 13.00 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86362371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1466
Semi-minor axis of confidence ellipse (meter) 788
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 6
Circular confidence region, given by single value of horizontal uncertainty (meter) 1470
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 216
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.05846
Epicentral distance of station farthest from the epicenter (degree) 0.40469
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.4
Num. used stations 13
Type of magnitude ML
Reference to an origin 86362371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-18 23:32:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OX.CIMO.HHZ. 2021-01-18T23:09:33.71 0.3 undecidable manual S 289 0.4047 50 0.18 70
OX.FUSE.HHZ. 2021-01-18T23:09:28.18 0.3 undecidable manual S 0 0.2311 50 -0.21 70
IV.STAL.HHZ. 2021-01-18T23:09:28.64 0.3 undecidable manual S 291 0.214 113 0.76 58
OX.CIMO.HHZ. 2021-01-18T23:09:27.02 0.1 undecidable manual P 289 0.4047 50 -0.32 92
OX.BOO.HHE. 2021-01-18T23:09:26.13 0.3 undecidable manual S 27 0.152 121 0.38 72
RF.GEPF.HHZ. 2021-01-18T23:09:25.60 0.3 undecidable manual S 46 0.1331 125 0.49 70
OX.FUSE.HHZ. 2021-01-18T23:09:24.15 0.3 positive manual P 0 0.2311 50 -0.23 71
IV.STAL.HHZ. 2021-01-18T23:09:24.20 0.6 positive manual P 291 0.214 113 0.12 48
NI.VINO.HHE. 2021-01-18T23:09:23.87 0.3 undecidable manual P 70 0.2032 114 0.01 76
OX.BAD.HHE. 2021-01-18T23:09:23.35 0.3 undecidable manual P 73 0.1763 118 0.03 75
OX.MPRI.HHZ. 2021-01-18T23:09:22.51 0.3 undecidable manual S 352 0.0585 148 -0.57 70
OX.BOO.HHE. 2021-01-18T23:09:22.86 0.3 undecidable manual P 27 0.152 121 0.01 77
RF.GEPF.HHZ. 2021-01-18T23:09:22.67 1.0 undecidable manual P 46 0.1331 125 0.18 25
OX.MPRI.HHZ. 2021-01-18T23:09:21.04 0.1 negative manual P 352 0.0585 148 -0.28 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.MPRI.HNN. ML:1.4 0.00037725305 0.3456 AML other m 2021-01-18T23:09:22.96
OX.MPRI.HHN. ML:1.5 0.0004823795 0.3712 AML other m 2021-01-18T23:09:22.98
OX.MPRI.HHE. ML:1 0.00015119495 0.192 AML other m 2021-01-18T23:09:24.03
OX.MPRI.HNE. ML:0.9 0.000123959705 0.256 AML other m 2021-01-18T23:09:23.41
RF.GEPF.HHN. ML:0.8 6.055E-5 0.34 AML other m 2021-01-18T23:09:28.59
IV.STAL.HHN. ML:1.2 0.0001024962 0.1152 AML other m 2021-01-18T23:09:28.83
RF.GEPF.HHE. ML:0.8 6.735E-5 0.4 AML other m 2021-01-18T23:09:28.72
IV.STAL.HHE. ML:1.2 9.0148185E-5 0.2048 AML other m 2021-01-18T23:09:31.10
IV.STAL.HNE. ML:1.4 0.00016000415 0.1536 AML other m 2021-01-18T23:09:29.10
IV.STAL.HNN. ML:1.6 0.00022664335 0.0896 AML other m 2021-01-18T23:09:29.11
OX.CIMO.HNN. ML:0.7 1.637472E-5 0.4864 AML other m 2021-01-18T23:09:34.56
OX.CIMO.HHE. ML:0.2 3.135238E-6 0.0768 AML other m 2021-01-18T23:09:34.44
OX.CIMO.HHN. ML:0.2 7.184021E-6 0.3456 AML other m 2021-01-18T23:09:35.51
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