Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 28-03-2020 and time 09:41:07 (Italy) in region 2 km E San Daniele del Friuli (UD)

A magnitude ML 0.9 earthquake occured in region: 2 km E San Daniele del Friuli (UD), on

  • 28-03-2020 08:41:07 (UTC)
  • 28-03-2020 09:41:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.1580, 13.0340 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
San Daniele del Friuli UD 2 8013 8013
Rive d'Arcano UD 3 2444 10457
Majano UD 5 5945 16402
Ragogna UD 5 2909 19311
Fagagna UD 6 6385 25696
Coseano UD 7 2187 27883
Pinzano al Tagliamento PN 7 1525 29408
San Vito di Fagagna UD 8 1671 31079
Moruzzo UD 8 2456 33535
Colloredo di Monte Albano UD 8 2223 35758
Forgaria nel Friuli UD 9 1786 37544
Buja UD 9 6563 44107
Martignacco UD 10 6924 51031
Treppo Grande UD 10 1708 52739
Vito d'Asio PN 10 769 53508
Dignano UD 11 2317 55825
Spilimbergo PN 11 12124 67949
Castelnovo del Friuli PN 11 880 68829
Flaibano UD 12 1156 69985
Osoppo UD 12 2936 72921
Mereto di Tomba UD 12 2648 75569
Cassacco UD 12 2938 78507
Clauzetto PN 12 380 78887
Pagnacco UD 13 5044 83931
Travesio PN 13 1776 85707
Artegna UD 13 2885 88592
Magnano in Riviera UD 14 2336 90928
Tricesimo UD 14 7600 98528
Trasaghis UD 14 2227 100755
Tavagnacco UD 15 14910 115665
Gemona del Friuli UD 16 10964 126629
Montenars UD 16 538 127167
Sequals PN 16 2200 129367
Tarcento UD 16 9012 138379
Reana del Rojale UD 16 4966 143345
Sedegliano UD 17 3868 147213
Basiliano UD 17 5356 152569
Pasian di Prato UD 17 9444 162013
San Giorgio della Richinvelda PN 18 4650 166663
Campoformido UD 18 7884 174547
Bordano UD 19 754 175301
Nimis UD 19 2740 178041
Arba PN 19 1309 179350
Udine UD 19 99169 278519
San Martino al Tagliamento PN 20 1468 279987

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NW of Udine (99169 inhabitants)
37 Km NE of Pordenone (51229 inhabitants)
80 Km NW of Trieste (204420 inhabitants)
82 Km NE of Treviso (83731 inhabitants)
97 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 0.9 2020-03-28
08:41:07		 46.1575 13.0338 10 2020-07-18
21:08:39		 Bollettino Sismico Italiano INGV 79940141
Reviewed
Rev100 		ML 0.9 2020-03-28
08:41:08		 46.1673 13.0463 11 2020-03-28
08:47:43		 Sala Sismica INGV-Roma 77641311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-28 08:41:07 ± 0.19
Latitude 46.1575 ± 0.0099
Longitude 13.0338 ± 0.0091
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 79940141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1090
Semi-minor axis of confidence ellipse (meter) 653
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 3
Circular confidence region, given by single value of horizontal uncertainty (meter) 1090.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 233
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.08903
Epicentral distance of station farthest from the epicenter (degree) 0.39930
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:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 79940141
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-06 00:51:38

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 77641311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-28 08:47:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OX.PLRO.HNZ. 2020-03-28T08:41:23.31 0.6 undecidable manual S 11 44.3223 50 0.79 38
OX.CLUD.HHN. 2020-03-28T08:41:20.46 0.6 undecidable manual S 341 35.2425 50 0.37 45
OX.FUSE.HHZ. 2020-03-28T08:41:17.97 0.3 undecidable manual S 355 28.5492 50 -0.35 69
NI.VINO.HHZ. 2020-03-28T08:41:16.28 0.3 undecidable manual S 60 21.4674 114 0.19 72
OX.PLRO.HNZ. 2020-03-28T08:41:16.48 0.3 undecidable manual P 11 44.3223 50 0.13 70
OX.BOO.HNE. 2020-03-28T08:41:15.11 0.6 undecidable manual S 15 18.6702 118 -0.12 49
OX.BAD.HNE. 2020-03-28T08:41:15.24 0.6 undecidable manual S 62 18.2706 118 0.14 49
RF.GEPF.HHZ. 2020-03-28T08:41:14.10 0.3 undecidable manual S 32 15.2736 122 -0.13 73
OX.CLUD.HHN. 2020-03-28T08:41:14.66 0.1 undecidable manual P 341 35.2425 50 -0.29 91
OX.MPRI.HHZ. 2020-03-28T08:41:13.09 0.3 undecidable manual S 339 9.879 134 0.35 71
OX.FUSE.HHZ. 2020-03-28T08:41:13.67 0.1 undecidable manual P 355 28.5492 50 -0.26 93
IV.STAL.HHZ. 2020-03-28T08:41:13.98 0.1 undecidable manual P 295 27.3504 50 0.25 93
OX.BAD.HNE. 2020-03-28T08:41:12.16 0.1 undecidable manual P 62 18.2706 118 0.09 98
NI.VINO.HHZ. 2020-03-28T08:41:12.58 0.1 undecidable manual P 60 21.4674 114 -0.06 98
OX.BOO.HNE. 2020-03-28T08:41:11.86 0.1 undecidable manual P 15 18.6702 118 -0.28 94
RF.GEPF.HHZ. 2020-03-28T08:41:11.52 0.1 undecidable manual P 32 15.2736 122 -0.05 100
OX.MPRI.HHZ. 2020-03-28T08:41:10.64 0.1 undecidable manual P 339 9.879 134 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.MPRI.HHN. ML:1.3 0.0002415 0.14 AML other m 2020-03-28T08:41:13.67
OX.MPRI.HHE. ML:1.1 0.0001795 0.36 AML other m 2020-03-28T08:41:13.49
RF.GEPF.HHE. ML:0.7 0.0000505 0.22 AML other m 2020-03-28T08:41:14.52
RF.GEPF.HHN. ML:0.9 0.0000814 0.42 AML other m 2020-03-28T08:41:14.65
NI.VINO.HHE. ML:0.6 0.0000265 0.6 AML other m 2020-03-28T08:41:17.16
NI.VINO.HHN. ML:0.6 0.00002965 0.38 AML other m 2020-03-28T08:41:18.73
IV.STAL.HHN. ML:0.9 0.000044649999999999994 1.18 AML other m 2020-03-28T08:41:20.24
IV.STAL.HHE. ML:0.9 0.000046200000000000005 1.24 AML other m 2020-03-28T08:41:22.29
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