Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 23-09-2019 and time 15:32:07 (Italy) in region 2 km SE Cascia (PG)

A magnitude ML 1.1 earthquake occured in region: 2 km SE Cascia (PG), on

  • 23-09-2019 13:32:07 (UTC)
  • 23-09-2019 15:32:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7020, 13.0300 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.

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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
Cascia PG 2 3217 3217
Poggiodomo PG 8 117 3334
Monteleone di Spoleto PG 8 599 3933
Norcia PG 11 4957 8890
Cittareale RI 14 482 9372
Vallo di Nera PG 16 364 9736
Cerreto di Spoleto PG 16 1075 10811
Scheggino PG 16 461 11272
Sant'Anatolia di Narco PG 16 564 11836
Leonessa RI 16 2435 14271
Accumoli RI 18 667 14938
Preci PG 20 724 15662
Polino TR 20 233 15895

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Terni (111501 inhabitants)
39 Km SE of Foligno (57155 inhabitants)
49 Km NW of L'Aquila (69753 inhabitants)
55 Km W of Teramo (54892 inhabitants)
69 Km SE of Perugia (166134 inhabitants)
82 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km E of Viterbo (67173 inhabitants)
84 Km N of Tivoli (56533 inhabitants)
94 Km W of Montesilvano (53738 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 2019-09-23
13:32:07		 42.7017 13.0303 10 2019-09-23
13:46:49		 Sala Sismica INGV-Roma 72695971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-23 13:32:07 ± 0.11
Latitude 42.7017 ± 0.0063
Longitude 13.0303 ± 0.0086
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 72695971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 689
Semi-minor axis of confidence ellipse (meter) 570
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 224
Circular confidence region, given by single value of horizontal uncertainty (meter) 690.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42898
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 9
Type of magnitude ML
Reference to an origin 72695971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-23 13:46:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ZONE.HHZ. 2019-09-23T13:33:42.12 3.0 undecidable manual Sg 18.77 0
IV.QLNO.HHZ. 2019-09-23T13:33:40.64 3.0 undecidable manual Sg 23.540001 0
IX.CSG3.HNZ.01 2019-09-23T13:33:40.24 3.0 undecidable manual Sg 14.27 0
IV.IMI.HHZ. 2019-09-23T13:33:35.21 3.0 undecidable manual Sg 15.15 0
IV.ECTS.EHZ. 2019-09-23T13:33:34.39 3.0 undecidable manual Pg 18.959999 0
IV.VARE.HHZ. 2019-09-23T13:33:31.60 3.0 undecidable manual Sn -5.51 0
IV.PTRP.HHZ. 2019-09-23T13:33:31.95 3.0 undecidable manual Sn -7.28 0
MN.TRI.HHZ. 2019-09-23T13:33:21.54 3.0 undecidable manual Sn -1.95 0
OT.OT14.EHZ. 2019-09-23T13:33:20.91 3.0 undecidable manual Sn -0.14 0
IV.SOI.EHZ. 2019-09-23T13:33:17.62 3.0 undecidable manual Pn -0.55 0
IV.RESU.HHZ. 2019-09-23T13:33:14.84 3.0 undecidable manual Pn 0.74 0
IV.GMB.BHZ. 2019-09-23T13:33:11.80 3.0 undecidable manual Pn -3.95 0
SI.BOSI.HHZ. 2019-09-23T13:33:02.81 3.0 undecidable manual Pg 11.52 0
ST.CARE.EHZ. 2019-09-23T13:32:58.30 3.0 undecidable manual Pg 6.98 0
IV.QLNO.HHZ. 2019-09-23T13:32:46.33 3.0 positive manual Pn 5.45 0
IV.VARE.HHZ. 2019-09-23T13:32:46.67 3.0 undecidable manual Pn -5.45 0
IT.SULP.HGZ. 2019-09-23T13:32:30.50 3.0 positive manual Pg 7.28 0
IV.SBPO.HNZ. 2019-09-23T13:32:28.57 3.0 positive manual Pn -3.96 0
IV.FOSV.EHZ. 2019-09-23T13:32:23.53 3.0 undecidable manual Sn -0.87 0
IV.FDMO.HHE. 2019-09-23T13:32:20.03 0.3 undecidable manual S 7 37.4292 50 0.16 73
IV.BRSN.HNZ. 2019-09-23T13:32:19.41 3.0 undecidable manual Pn -1.42 0
IV.RIBO.EHZ.01 2019-09-23T13:32:18.06 3.0 positive manual Pg 11.16 0
IV.LMD.HHZ. 2019-09-23T13:32:18.64 3.0 undecidable manual Pn 0.73 0
IV.MMO1.EHZ. 2019-09-23T13:32:18.80 0.6 undecidable manual S 48 32.6451 50 0.22 48
IV.MTRA.EHZ. 2019-09-23T13:32:18.47 0.3 undecidable manual S 78 30.4473 50 0.46 69
IV.SMA1.EHZ. 2019-09-23T13:32:17.06 0.3 undecidable manual S 108 26.0517 110 0.33 72
IV.RM33.EHZ. 2019-09-23T13:32:16.51 0.3 undecidable manual S 145 26.1516 110 -0.23 73
IV.TERO.HHZ. 2019-09-23T13:32:15.91 0.3 undecidable manual P 100 47.619 50 -0.12 72
IV.FDMO.HHE. 2019-09-23T13:32:14.44 0.1 undecidable manual P 7 37.4292 50 -0.03 100
IV.MMO1.EHZ. 2019-09-23T13:32:13.12 0.3 undecidable manual P 48 32.6451 50 -0.6 66
IV.MTRA.EHZ. 2019-09-23T13:32:13.26 0.3 undecidable manual P 78 30.4473 50 -0.13 74
IV.NRCA.HHE. 2019-09-23T13:32:13.80 0.3 undecidable manual S 25 16.1727 121 0.2 75
IV.OSSC.HHZ. 2019-09-23T13:32:13.05 3.0 negative manual P 1.46 0
IV.RM33.EHZ. 2019-09-23T13:32:12.50 0.6 undecidable manual P 145 26.1516 110 -0.16 50
IV.GAVE.EHZ. 2019-09-23T13:32:12.33 0.3 undecidable manual S 265 11.1777 131 0.15 77
IV.MC2.EHE. 2019-09-23T13:32:12.66 0.3 undecidable manual P 29 26.6511 110 -0.09 75
IV.MNTT.EHZ. 2019-09-23T13:32:12.30 3.0 undecidable manual Pn -5.8 0
IV.SMA1.EHZ. 2019-09-23T13:32:12.80 0.3 undecidable manual P 108 26.0517 110 0.15 75
IV.APEC.HHZ. 2019-09-23T13:32:12.18 3.0 undecidable manual P 0.19 0
IV.GAVE.EHZ. 2019-09-23T13:32:10.27 0.1 undecidable manual P 265 11.1777 131 0.24 100
IV.NRCA.HHE. 2019-09-23T13:32:10.11 0.3 undecidable manual P 25 16.1727 121 -0.74 64
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHE. ML:1.8 0.0007563914000000001 0.1792 AML other m 2019-09-23T13:32:12.78
IV.GAVE.EHN. ML:1.7 0.00058615645 0.0832 AML other m 2019-09-23T13:32:12.54
IV.GAVE.HNE. ML:1.8 0.0008124754499999999 0.192 AML other m 2019-09-23T13:32:12.77
IV.GAVE.HNN. ML:1.2 0.0002114321 0.2048 AML other m 2019-09-23T13:32:12.53
IV.SMA1.EHE. ML:1.2 0.00010043832 0.4224 AML other m 2019-09-23T13:32:17.53
IV.SMA1.EHN. ML:0.8 0.00003947811 0.3008 AML other m 2019-09-23T13:32:18.33
IV.MTRA.EHN. ML:0.9 0.000039926235000000007 0.1792 AML other m 2019-09-23T13:32:18.71
IV.TERO.HHE. ML:0.7 0.000017467764 0.2176 AML other m 2019-09-23T13:32:23.36
IV.TERO.HHN. ML:0.7 0.000013238754 0.0576 AML other m 2019-09-23T13:32:22.69
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