Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 24-09-2019 and time 14:52:55 (Italy) in region 3 km NE Norcia (PG)

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

  • 24-09-2019 12:52:55 (UTC)
  • 24-09-2019 14:52:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8140, 13.1210 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
Norcia PG 3 4957 4957
Castelsantangelo sul Nera MC 9 281 5238
Preci PG 10 724 5962
Visso MC 13 1107 7069
Cascia PG 14 3217 10286
Ussita MC 15 444 10730
Arquata del Tronto AP 15 1178 11908
Cerreto di Spoleto PG 17 1075 12983
Accumoli RI 17 667 13650
Montegallo AP 18 523 14173
Sellano PG 18 1079 15252
Poggiodomo PG 19 117 15369
Montemonaco AP 19 604 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km W of Pescara (121014 inhabitants)
98 Km N of Tivoli (56533 inhabitants)
100 Km NW of Chieti (51815 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 2019-09-24
12:52:55		 42.8143 13.1212 11 2019-09-24
13:01:44		 Sala Sismica INGV-Roma 72724961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-24 12:52:55 ± 0.04
Latitude 42.8143 ± 0.0027
Longitude 13.1212 ± 0.0049
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 72724961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 370
Semi-minor axis of confidence ellipse (meter) 237
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 105
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 16
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) 0.35163
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 72724961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-24 13:01:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RNCA.HHZ. 2019-09-24T12:54:00.20 3.0 positive manual Pg 15.92 0
IV.SPS2.HHZ. 2019-09-24T12:53:57.96 3.0 positive manual Pg 14.34 0
IV.CMPO.HNZ. 2019-09-24T12:53:57.38 3.0 undecidable manual Sn 2.49 0
IV.FERC.HNZ. 2019-09-24T12:53:54.73 3.0 undecidable manual Pn 2.36 0
IV.TRIF.CHZ. 2019-09-24T12:53:43.41 3.0 undecidable manual Sn 0.32 0
GU.POPM.HHZ. 2019-09-24T12:53:29.88 3.0 negative manual Pg 3.56 0
IV.VAGA.HHZ. 2019-09-24T12:53:19.88 3.0 undecidable manual Sg -3.04 0
IV.PTRJ.HHZ. 2019-09-24T12:53:09.88 3.0 undecidable manual Pg 0.26 0
IV.RM33.EHZ. 2019-09-24T12:53:07.20 0.3 undecidable manual S 167 34.743 50 -0.01 71
IV.CSP1.EHZ. 2019-09-24T12:53:06.36 0.3 undecidable manual S 12 31.5462 50 0 72
IV.FDMO.HHZ. 2019-09-24T12:53:04.44 0.3 undecidable manual S 354 24.753 50 -0.12 71
IV.TERO.HHZ. 2019-09-24T12:53:04.28 3.0 undecidable manual Sn 0.64 0
IV.GAVE.EHZ. 2019-09-24T12:53:04.02 0.3 undecidable manual S 234 22.9548 50 -0.04 72
IV.MTRA.EHZ. 2019-09-24T12:53:04.18 0.3 undecidable manual S 106 23.3544 50 0.02 73
IV.ARRO.EHZ. 2019-09-24T12:53:03.06 0.3 undecidable manual P 228 39.0276 50 0.18 68
IV.RM33.EHZ. 2019-09-24T12:53:02.18 0.3 undecidable manual P 167 34.743 50 -0.04 71
IV.MC2.EHZ. 2019-09-24T12:53:01.28 0.3 undecidable manual S 27 12.0768 132 0.25 71
IV.CSP1.EHZ. 2019-09-24T12:53:01.67 0.3 undecidable manual P 12 31.5462 50 -0.06 71
IV.MTRA.EHZ. 2019-09-24T12:53:00.37 0.3 undecidable manual P 106 23.3544 50 -0.09 72
IV.FDMO.HHZ. 2019-09-24T12:53:00.65 0.1 undecidable manual P 354 24.753 50 -0.04 96
IV.GAVE.EHZ. 2019-09-24T12:53:00.52 0.3 undecidable manual P 234 22.9548 50 0.12 71
IV.MMO1.EHZ. 2019-09-24T12:52:59.71 0.3 undecidable manual P 61 19.1697 119 -0.11 72
IV.MC2.EHZ. 2019-09-24T12:52:58.84 0.1 undecidable manual P 27 12.0768 132 0.19 95
IV.NRCA.HNZ. 2019-09-24T12:52:58.88 0.3 undecidable manual S 345 2.1978 168 -0.34 70
IV.NRCA.HNZ. 2019-09-24T12:52:57.65 0.1 undecidable manual P 345 2.1978 168 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.0 0.0000535316 0.544 AML other m 2019-09-24T12:53:04.78
IV.NRCA.HNN. ML:1.8 0.0009815 0.14 AML other m 2019-09-24T12:52:58.96
IV.NRCA.HHN. ML:1.8 0.0010325 0.14 AML other m 2019-09-24T12:52:58.96
IV.NRCA.HHE. ML:1.7 0.0008280000000000001 0.92 AML other m 2019-09-24T12:52:59.55
IV.NRCA.HNE. ML:1.6 0.0007595000000000001 0.94 AML other m 2019-09-24T12:52:59.56
IV.FDMO.HHN. ML:0.9 0.000047850000000000004 0.9 AML other m 2019-09-24T12:53:04.97
IV.FDMO.HHE. ML:0.8 0.0000422 1.52 AML other m 2019-09-24T12:53:05.12
IV.MTRA.EHN. ML:1.0 0.00005265 0.56 AML other m 2019-09-24T12:53:06.14
IV.GAVE.EHE. ML:1.2 0.00009462404 1.4016 AML other m 2019-09-24T12:53:04.40
IV.GAVE.EHN. ML:1.1 0.00008026463999999999 0.3008 AML other m 2019-09-24T12:53:04.79
IV.CSP1.EHE. ML:1.1 0.00005325584 0.416 AML other m 2019-09-24T12:53:06.90
IV.CSP1.EHN. ML:1.0 0.000045917075 1.2992 AML other m 2019-09-24T12:53:06.90
IV.RM33.EHE. ML:0.7 0.00002123868 0.864 AML other m 2019-09-24T12:53:08.17
IV.RM33.EHN. ML:0.7 0.000019937120000000004 0.3776 AML other m 2019-09-24T12:53:07.48
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