Earthquake with magnitude of ML 1.2 on date 04-02-2020 and time 06:27:09 (Italy) in region 7 km S Forni di Sotto (UD)

A magnitude ML 1.2 earthquake occured in region: 7 km S Forni di Sotto (UD), on

  • 04-02-2020 05:27:09 (UTC)
  • 04-02-2020 06:27:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.34, 12.66 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
Forni di Sotto UD 7 600 600
Tramonti di Sopra PN 11 321 921
Forni di Sopra UD 12 993 1914
Tramonti di Sotto PN 12 387 2301
Claut PN 13 956 3257
Ampezzo UD 14 1006 4263
Frisanco PN 15 622 4885
Socchieve UD 15 908 5793
Sauris UD 15 416 6209
Andreis PN 15 259 6468
Meduno PN 16 1574 8042
Preone UD 18 246 8288
Barcis PN 18 256 8544
Cimolais PN 18 397 8941
Cavasso Nuovo PN 18 1525 10466
Fanna PN 18 1583 12049
Maniago PN 19 11698 23747
Enemonzo UD 19 1319 25066
Raveo UD 20 458 25524
Montereale Valcellina PN 20 4433 29957

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km N of Pordenone (51229 inhabitants)
54 Km NW of Udine (99169 inhabitants)
81 Km NE of Treviso (83731 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
Rev 100 ML 1.2 2020-02-04
05:27:09
46.34 12.66 10 2020-02-04
05:33:03
Sala Sismica INGV-Roma 76185961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-04 05:27:09 ± 0.12
Latitude 46.34 ± 0.01
Longitude 12.66 ± 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 76185961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 914
Semi-minor axis of confidence ellipse (meter) 671
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 176
Circular confidence region, given by single value of horizontal uncertainty (meter) 910
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.27429
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 76185961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-04 05:33:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FIAM.HHZ. 2020-02-04T05:28:30.50 3.0 undecidable manual Sg 8.85 0
IV.OFFI.HHZ. 2020-02-04T05:28:18.34 3.0 undecidable manual Sn 1.33 0
IV.PZUN.HHZ. 2020-02-04T05:28:15.78 3.0 positive manual Pn 6.65 0
IV.CIMA.HNZ. 2020-02-04T05:28:15.33 3.0 undecidable manual Sn 4.14 0
IV.LPEL.HHZ. 2020-02-04T05:27:52.78 3.0 undecidable manual Pg 9.21 0
IV.FRES.HHZ. 2020-02-04T05:27:46.41 3.0 undecidable manual Pn -1.39 0
IV.CSNT.HHZ. 2020-02-04T05:27:38.54 3.0 undecidable manual Sn -0.07 0
GU.BLANC.HHZ. 2020-02-04T05:27:38.90 3.0 undecidable manual Sg 2.51 0
IV.CRMI.HHZ. 2020-02-04T05:27:26.75 3.0 undecidable manual Sn -2.27 0
IV.FVI.HHZ. 2020-02-04T05:27:19.85 0.1 undecidable manual S 18 0.2743 50 0.03 97
IV.NARO.HHZ. 2020-02-04T05:27:18.95 3.0 positive manual Pn 1.9 0
OX.FUSE.HHZ. 2020-02-04T05:27:18.59 0.1 undecidable manual S 71 0.2482 50 -0.49 88
OX.CLUD.HHZ. 2020-02-04T05:27:17.19 0.1 undecidable manual S 52 0.1952 115 -0.14 96
OX.FUSE.HHZ. 2020-02-04T05:27:15.01 0.1 undecidable manual P 71 0.2482 50 0.18 94
OX.CIMO.HHZ. 2020-02-04T05:27:15.49 0.1 undecidable manual S 261 0.1502 121 -0.28 94
IV.FVI.HHZ. 2020-02-04T05:27:15.69 0.3 positive manual P 18 0.2743 50 0.43 67
OX.CLUD.HHZ. 2020-02-04T05:27:13.95 0.1 undecidable manual P 52 0.1952 115 0.13 96
IV.STAL.HHZ. 2020-02-04T05:27:13.72 0.1 undecidable manual S 155 0.0836 137 -0.06 100
OX.CIMO.HHZ. 2020-02-04T05:27:12.97 0.6 positive manual P 261 0.1502 121 0.05 49
IV.STAL.HHZ. 2020-02-04T05:27:12.04 0.1 positive manual P 155 0.0836 137 0.27 96
ST.VARA.EHZ. 2020-02-04T05:27:10.75 3.0 undecidable manual S 0.56 0
IV.FIR.HHZ. 2020-02-04T05:27:05.71 3.0 undecidable manual Pn -0.6 0
IV.MILN.HNZ. 2020-02-04T05:26:45.00 3.0 undecidable manual S -3.88 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.STAL.HNE. ML:1.4 0.000317 0.84 AML other m 2020-02-04T05:27:13.09
IV.STAL.HNN. ML:1.4 0.000361 0.28 AML other m 2020-02-04T05:27:14.41
IV.STAL.HHN. ML:1.3 0.000254 0.16 AML other m 2020-02-04T05:27:14.61
IV.STAL.HHE. ML:1.3 0.00029 0.14 AML other m 2020-02-04T05:27:14.62
OX.CIMO.HHN. ML:0.8 5.595E-5 0.26 AML other m 2020-02-04T05:27:15.74
OX.CIMO.HHE. ML:0.8 4.945E-5 0.22 AML other m 2020-02-04T05:27:15.77
IV.FVI.HHE. ML:1.3 9.01E-5 0.14 AML other m 2020-02-04T05:27:20.01
IV.FVI.HHN. ML:1.1 5.335E-5 0.82 AML other m 2020-02-04T05:27:20.16
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