Earthquake (quarry blast) with magnitude of ML 0.6 on date 21-02-2019 and time 10:46:27 (Italy) in region 4 km NW Gubbio (PG)

A magnitude ML 0.6 (quarry blast) earthquake occured in region: 4 km NW Gubbio (PG), on

  • 21-02-2019 09:46:27 (UTC)
  • 21-02-2019 10:46:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.38, 12.55 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Gubbio PG 4 32216 32216
Scheggia e Pascelupo PG 10 1393 33609
Pietralunga PG 11 2111 35720
Cantiano PU 12 2245 37965
Costacciaro PG 13 1216 39181
Sigillo PG 17 2404 41585
Montone PG 18 1680 43265
Fossato di Vico PG 20 2840 46105
Umbertide PG 20 16681 62786
Cagli PU 20 8731 71517

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Perugia (166134 inhabitants)
49 Km N of Foligno (57155 inhabitants)
55 Km E of Arezzo (99543 inhabitants)
64 Km SW of Fano (60888 inhabitants)
66 Km SW of Pesaro (94582 inhabitants)
76 Km S of Rimini (147750 inhabitants)
83 Km W of Ancona (100861 inhabitants)
88 Km S of Cesena (96758 inhabitants)
92 Km N of Terni (111501 inhabitants)
99 Km E of Siena (53903 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
Rev 1000 ML 0.6 2019-02-21
09:46:27
43.38 12.55 1 2019-08-22
08:25:03
Bollettino Sismico Italiano INGV 69738131
Rev 100 ML 1.0 2019-02-21
09:46:26
43.37 12.59 10 2019-02-21
09:53:41
Sala Sismica INGV-Roma 65757781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-21 09:46:27 ± 0.09
Latitude 43.38 ± 0.01
Longitude 12.55 ± 0.01
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 69738131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 750
Semi-minor axis of confidence ellipse (meter) 570
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 39
Circular confidence region, given by single value of horizontal uncertainty (meter) 750
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.17717
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 69738131
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-06-20 13:18:14

ML:1

Field Value
Value 1
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 65757781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-21 09:53:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MILZ.HHZ. 2019-02-21T09:48:03.44 3.0 undecidable manual Pg 16.209999 0
IV.ERC.EHZ. 2019-02-21T09:47:59.26 3.0 undecidable manual Pg 14.61 0
IV.CAGR.HHZ. 2019-02-21T09:47:52.15 3.0 undecidable manual Pn -1.1 0
AC.PUK.HHZ. 2019-02-21T09:47:51.53 3.0 undecidable manual Pn 3.32 0
IV.CPOZ.HHZ. 2019-02-21T09:47:49.71 3.0 undecidable manual Sg 3.25 0
IV.EUCT.HNZ. 2019-02-21T09:47:44.78 3.0 undecidable manual Sn -0.66 0
IV.IFIL.HHZ. 2019-02-21T09:47:44.78 3.0 undecidable manual Pn 3.71 0
IV.PZUN.HHZ. 2019-02-21T09:47:34.07 3.0 negative manual Pg 11.94 0
IT.VNF1.HGZ. 2019-02-21T09:47:29.16 3.0 undecidable manual Sn -2.47 0
IV.COLB.HHZ. 2019-02-21T09:47:20.30 3.0 undecidable manual Pg 9.71 0
IV.NDIM.HNZ. 2019-02-21T09:47:17.42 3.0 undecidable manual Sn -0.26 0
IV.VBKN.HHZ. 2019-02-21T09:47:12.22 3.0 negative manual Pn 0.43 0
IV.SGG.HHZ. 2019-02-21T09:47:09.60 3.0 positive manual Pg 4.59 0
IV.CNCS.HNZ. 2019-02-21T09:47:08.48 3.0 positive manual Pn 2.37 0
IT.GLNS.HNZ. 2019-02-21T09:47:06.00 3.0 positive manual Pg 2.73 0
IV.TOLF.HHZ. 2019-02-21T09:46:51.35 3.0 undecidable manual Pn 1.48 0
IV.IMOL.HNZ. 2019-02-21T09:46:42.37 3.0 positive manual P -1.25 0
IV.SSFR.HHN. 2019-02-21T09:46:31.41 0.3 undecidable manual P 72 0.1772 91 0.12 73
IV.PIEI.HHZ. 2019-02-21T09:46:30.70 0.3 undecidable manual P 356 0.1538 92 -0.07 75
IV.ATPI.EHE. 2019-02-21T09:46:30.30 0.1 undecidable manual P 303 0.1277 92 0.12 99
IV.MURB.HHZ. 2019-02-21T09:46:30.24 0.3 undecidable manual P 189 0.1205 92 0.21 73
IV.ATVO.HHZ. 2019-02-21T09:46:29.46 0.3 undecidable manual P 270 0.1043 92 -0.2 73
IV.ATFO.HHZ. 2019-02-21T09:46:27.68 0.1 positive manual P 135 0.0216 102 -0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:1.6 0.000787 1.7 AML other m 2019-02-21T09:46:29.98
IV.ATFO.HHE. ML:1.6 0.0007495 0.44 AML other m 2019-02-21T09:46:29.44
IV.ATVO.HHN. ML:0.4 4.4738015E-5 0.6208 AML other m 2019-02-21T09:46:33.50
IV.MURB.HHN. ML:0 0.0001135 0.28 AML other m 2019-02-21T09:46:35.22
IV.MURB.HHE. ML:0.8 7.755E-5 0.32 AML other m 2019-02-21T09:46:35.55
IV.ATVO.HHE. ML:0.3 3.159226E-5 0.6208 AML other m 2019-02-21T09:46:36.52
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