Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 11-08-2019 and time 09:56:44 (Italy) in region 3 km NW Preci (PG)

A magnitude ML 1.1 earthquake occured in region: 3 km NW Preci (PG), on

  • 11-08-2019 07:56:44 (UTC)
  • 11-08-2019 09:56:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9030, 13.0210 at 11 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.

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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
Preci PG 3 724 724
Visso MC 6 1107 1831
Sellano PG 8 1079 2910
Monte Cavallo MC 10 145 3055
Ussita MC 11 444 3499
Castelsantangelo sul Nera MC 11 281 3780
Cerreto di Spoleto PG 13 1075 4855
Norcia PG 14 4957 9812
Pieve Torina MC 16 1458 11270
Fiordimonte MC 16 202 11472
Fiastra MC 19 559 12031
Pievebovigliana MC 19 866 12897
Acquacanina MC 19 121 13018
Vallo di Nera PG 20 364 13382
Serravalle di Chienti MC 20 1070 14452
Bolognola MC 20 142 14594

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Foligno (57155 inhabitants)
49 Km NE of Terni (111501 inhabitants)
56 Km E of Perugia (166134 inhabitants)
62 Km W of Teramo (54892 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
92 Km NE of Viterbo (67173 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
Reviewed
Rev100 		ML 1.1 2019-08-11
07:56:44		 42.9028 13.0207 11 2019-08-11
08:11:00		 Sala Sismica INGV-Roma 71375771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-11 07:56:44 ± 0.04
Latitude 42.9028 ± 0.0027
Longitude 13.0207 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71375771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 322
Semi-minor axis of confidence ellipse (meter) 250
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34444
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 71375771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-11 08:11:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ALJA.HHZ. 2019-08-11T07:58:57.73 3.0 undecidable manual Sn -4.45 0
MN.TIP.HHZ. 2019-08-11T07:58:48.23 3.0 undecidable manual Sn -2.95 0
IV.IMI.HHZ. 2019-08-11T07:58:43.60 3.0 undecidable manual Sg 18.549999 0
IV.SARZ.HHZ. 2019-08-11T07:58:35.64 3.0 undecidable manual Sg 18.139999 0
IV.AGLI.HHZ. 2019-08-11T07:58:30.38 3.0 undecidable manual Sg 16.1 0
IV.CTI.HHZ. 2019-08-11T07:58:25.63 3.0 undecidable manual Sg 13.41 0
IV.FERC.HNZ. 2019-08-11T07:58:07.88 3.0 undecidable manual Pg 8 0
MN.TIP.HHZ. 2019-08-11T07:58:00.51 3.0 positive manual Pn 5.42 0
IX.MNT3.HHZ.02 2019-08-11T07:57:58.56 3.0 undecidable manual Sn -0.5 0
IV.CRAC.EHZ. 2019-08-11T07:57:50.30 3.0 negative manual Pg 9.94 0
IV.SARZ.HHZ. 2019-08-11T07:57:47.41 3.0 negative manual Pg 11.24 0
IV.TDS.HHZ. 2019-08-11T07:57:47.53 3.0 undecidable manual Pn 0.41 0
CR.ZAG.BHZ. 2019-08-11T07:57:47.18 3.0 undecidable manual Pg 7.9 0
IV.CADC.HNZ. 2019-08-11T07:57:30.69 3.0 positive manual Pn -2.01 0
IV.PESA.HHZ. 2019-08-11T07:57:17.76 3.0 undecidable manual S 0.23 0
IV.PARC.HHZ. 2019-08-11T07:57:09.03 3.0 undecidable manual S -3.09 0
IV.RIBO.EHZ.01 2019-08-11T07:57:06.76 3.0 positive manual Pg -0.55 0
IV.TOLF.HHZ. 2019-08-11T07:57:04.42 3.0 undecidable manual P 0.25 0
IV.ASSB.HHZ. 2019-08-11T07:56:55.72 0.3 undecidable manual S 298 33.2445 50 0.01 73
IV.FRON.EHZ. 2019-08-11T07:56:54.17 3.0 positive manual P -0.59 0
IV.CSP1.EHZ. 2019-08-11T07:56:53.64 0.3 undecidable manual S 35 25.752 50 -0.08 73
IV.MML1.HNZ. 2019-08-11T07:56:53.16 0.3 undecidable manual S 350 23.6541 50 -0.01 75
IV.GAVE.HNZ. 2019-08-11T07:56:53.51 0.3 undecidable manual S 204 25.5522 50 -0.16 72
IV.MOMA.HNZ. 2019-08-11T07:56:51.91 0.6 undecidable manual P 253 38.2284 50 0.24 46
IV.FDMO.HHZ. 2019-08-11T07:56:50.82 0.3 undecidable manual S 20 15.7731 124 -0.13 74
IV.ASSB.HHZ. 2019-08-11T07:56:50.84 0.6 undecidable manual P 298 33.2445 50 -0.06 48
IV.CESI.HNZ. 2019-08-11T07:56:50.62 0.3 undecidable manual S 320 14.6742 126 -0.03 75
IV.MC2.EHZ. 2019-08-11T07:56:50.69 0.3 undecidable manual S 86 13.6752 128 0.32 71
IT.MTCL.HGZ. 2019-08-11T07:56:49.23 0.3 undecidable manual S 350 10.2786 136 -0.24 73
IV.NRCA.HHZ. 2019-08-11T07:56:49.37 0.3 undecidable manual S 135 10.7781 135 -0.25 73
IV.CSP1.EHZ. 2019-08-11T07:56:49.78 0.3 undecidable manual P 35 25.752 50 0.03 74
IV.MML1.HNZ. 2019-08-11T07:56:49.38 0.3 undecidable manual P 350 23.6541 50 -0.05 74
IV.GAVE.HNZ. 2019-08-11T07:56:49.77 0.3 undecidable manual P 204 25.5522 50 0.05 74
IV.FDMO.HHZ. 2019-08-11T07:56:48.25 0.1 undecidable manual P 20 15.7731 124 0.1 99
IV.FEMA.HNZ. 2019-08-11T07:56:48.82 0.3 undecidable manual S 20 6.993 147 0.05 76
IV.CESI.HNZ. 2019-08-11T07:56:48.16 0.1 undecidable manual P 320 14.6742 126 0.19 97
IV.MC2.EHZ. 2019-08-11T07:56:47.64 0.6 undecidable manual P 86 13.6752 128 -0.17 49
IT.MTCL.HGZ. 2019-08-11T07:56:47.42 0.1 undecidable manual P 350 10.2786 136 0.12 99
IV.NRCA.HHZ. 2019-08-11T07:56:47.47 0.1 positive manual P 135 10.7781 135 0.09 100
IV.FEMA.HNZ. 2019-08-11T07:56:46.57 0.6 undecidable manual P 20 6.993 147 -0.32 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:1.6 0.00048750000000000003 0.1 AML other m 2019-08-11T07:56:49.53
IV.NRCA.HHN. ML:1.6 0.000518 0.14 AML other m 2019-08-11T07:56:49.53
IV.NRCA.HHE. ML:1.5 0.000338 1.26 AML other m 2019-08-11T07:56:49.80
IV.NRCA.HNE. ML:1.4 0.000322 1 AML other m 2019-08-11T07:56:49.81
IV.FDMO.HHN. ML:1.0 0.0000825 1.82 AML other m 2019-08-11T07:56:50.07
IV.FDMO.HHE. ML:1.3 0.0001715 0.26 AML other m 2019-08-11T07:56:51.31
IV.ASSB.HHN. ML:0.8 0.00002505 0.28 AML other m 2019-08-11T07:56:56.19
IV.ASSB.HHE. ML:0.8 0.0000286 0.78 AML other m 2019-08-11T07:56:56.35
IV.CSP1.EHE. ML:0.8 0.0000371500815 0.1216 AML other m 2019-08-11T07:56:54.04
IV.CSP1.EHN. ML:0.6 0.000026967185 0.32 AML other m 2019-08-11T07:56:53.99
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