Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 21-09-2019 and time 23:30:08 (UTC) in region 3 km SE Cascia (PG)

A magnitude ML 1.2 earthquake occured in region: 3 km SE Cascia (PG), on

  • 21-09-2019 23:30:08 (UTC)
  • 22-09-2019 01:30:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6930, 13.0370 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 3 3217 3217
Monteleone di Spoleto PG 8 599 3816
Poggiodomo PG 9 117 3933
Norcia PG 12 4957 8890
Cittareale RI 13 482 9372
Leonessa RI 16 2435 11807
Vallo di Nera PG 17 364 12171
Scheggino PG 17 461 12632
Sant'Anatolia di Narco PG 17 564 13196
Cerreto di Spoleto PG 17 1075 14271
Accumoli RI 17 667 14938
Posta RI 19 694 15632
Polino TR 20 233 15865

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Terni (111501 inhabitants)
40 Km SE of Foligno (57155 inhabitants)
48 Km NW of L'Aquila (69753 inhabitants)
55 Km W of Teramo (54892 inhabitants)
70 Km SE of Perugia (166134 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km E of Viterbo (67173 inhabitants)
83 Km N of Tivoli (56533 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
100 Km W of Pescara (121014 inhabitants)
100 Km NE of Roma (2864731 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 1.2 2019-09-21
23:30:08		 42.6933 13.037 10 2019-09-21
23:45:43		 Sala Sismica INGV-Roma 72635741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-21 23:30:08 ± 0.05
Latitude 42.6933 ± 0.0036
Longitude 13.0370 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72635741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 357
Semi-minor axis of confidence ellipse (meter) 289
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 166
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
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) 0.09083
Epicentral distance of station farthest from the epicenter (degree) 0.44516
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 18
Type of magnitude ML
Reference to an origin 72635741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-21 23:45:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2019-09-21T23:30:25.04 0.3 undecidable manual S 322 49.4172 50 0.12 72
IV.MOMA.HHZ. 2019-09-21T23:30:22.56 0.3 undecidable manual S 288 39.9267 50 0.18 73
IV.FDMO.HHZ. 2019-09-21T23:30:21.29 0.3 undecidable manual S 6 38.2284 50 -0.65 64
IV.CESX.HHZ. 2019-09-21T23:30:21.96 0.3 undecidable manual S 256 37.9287 50 0.12 74
IV.MMO1.EHZ. 2019-09-21T23:30:20.40 0.3 undecidable manual S 46 32.8449 50 -0.09 75
IV.MC2.EHZ. 2019-09-21T23:30:19.06 0.3 undecidable manual S 27 27.1506 50 0.09 75
IV.SMA1.EHZ. 2019-09-21T23:30:18.48 0.3 undecidable manual S 106 25.3524 111 0.07 76
IV.RM33.EHZ. 2019-09-21T23:30:18.12 0.3 undecidable manual S 145 25.0527 111 -0.21 74
IV.ASSB.HHZ. 2019-09-21T23:30:18.06 0.3 undecidable manual P 322 49.4172 50 -0.12 72
IV.ARRO.EHZ. 2019-09-21T23:30:17.90 0.3 undecidable manual S 240 25.5522 111 -0.57 68
IV.CESX.HHZ. 2019-09-21T23:30:16.42 0.6 undecidable manual P 256 37.9287 50 0.01 50
IV.FDMO.HHZ. 2019-09-21T23:30:16.42 0.3 undecidable manual P 6 38.2284 50 -0.04 75
IV.MOMA.HHZ. 2019-09-21T23:30:16.87 0.3 undecidable manual P 288 39.9267 50 0.15 73
IV.NRCA.HHZ. 2019-09-21T23:30:15.64 0.3 undecidable manual S 22 16.7721 120 -0.09 77
IV.MMO1.EHZ. 2019-09-21T23:30:15.62 0.3 undecidable manual P 46 32.8449 50 -0.01 76
IV.GAVE.EHZ. 2019-09-21T23:30:14.26 0.3 undecidable manual S 269 11.6772 130 -0.01 79
IV.RM33.EHZ. 2019-09-21T23:30:14.31 0.3 undecidable manual P 145 25.0527 111 -0.07 76
IV.SMA1.EHZ. 2019-09-21T23:30:14.65 0.3 undecidable manual P 106 25.3524 111 0.22 74
IV.MC2.EHZ. 2019-09-21T23:30:14.86 0.3 undecidable manual P 27 27.1506 50 0.11 75
IV.ARRO.EHZ. 2019-09-21T23:30:14.37 0.6 positive manual P 240 25.5522 111 -0.09 50
IV.NRCA.HHZ. 2019-09-21T23:30:13.00 0.3 undecidable manual P 22 16.7721 120 0.12 76
IV.LNSS.HHZ. 2019-09-21T23:30:13.77 0.3 undecidable manual S 178 10.0788 134 -0.09 78
IV.LNSS.HHZ. 2019-09-21T23:30:12.10 0.3 positive manual P 178 10.0788 134 0.3 74
IV.GAVE.EHZ. 2019-09-21T23:30:12.29 0.1 positive manual P 269 11.6772 130 0.25 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.4 0.00033467565 0.1024 AML other m 2019-09-21T23:30:14.14
IV.LNSS.HHN. ML:1.3 0.00023998435 0.1152 AML other m 2019-09-21T23:30:14.76
IV.LNSS.HNE. ML:1.4 0.00029014915 0.0896 AML other m 2019-09-21T23:30:14.14
IV.LNSS.HNN. ML:1.3 0.00023339860000000002 0.1408 AML other m 2019-09-21T23:30:14.76
IV.GAVE.EHE. ML:1.3 0.00024845765 0.128 AML other m 2019-09-21T23:30:14.83
IV.GAVE.EHN. ML:1.1 0.00015925899999999997 0.1792 AML other m 2019-09-21T23:30:15.37
IV.GAVE.HNE. ML:1.4 0.00025849925 0.128 AML other m 2019-09-21T23:30:14.83
IV.NRCA.HHE. ML:1.4 0.0002019168 0.1792 AML other m 2019-09-21T23:30:15.96
IV.NRCA.HHN. ML:1.2 0.00015476390000000002 0.0896 AML other m 2019-09-21T23:30:15.97
IV.NRCA.HNE. ML:1.3 0.00018341180000000002 0.2048 AML other m 2019-09-21T23:30:16.06
IV.NRCA.HNN. ML:1.2 0.00013986555 0.0896 AML other m 2019-09-21T23:30:15.97
IV.RM33.EHE. ML:1.0 0.000059709709999999996 0.2816 AML other m 2019-09-21T23:30:19.03
IV.RM33.EHN. ML:1.1 0.000068014415 0.2432 AML other m 2019-09-21T23:30:18.32
IV.SMA1.EHE. ML:1.2 0.00009365919999999999 0.3328 AML other m 2019-09-21T23:30:18.91
IV.SMA1.EHN. ML:1.0 0.00005852681 0.3584 AML other m 2019-09-21T23:30:21.07
IV.MOMA.HNE. ML:1.3 0.00006816408 0.1664 AML other m 2019-09-21T23:30:23.97
IV.MOMA.HHE. ML:1.3 0.00006316216 0.1408 AML other m 2019-09-21T23:30:24.49
IV.MOMA.HHN. ML:1.2 0.00004901344 0.1792 AML other m 2019-09-21T23:30:24.07
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