Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 12-10-2019 and time 21:49:32 (Italy) in region 4 km E Norcia (PG)

A magnitude ML 1.1 earthquake occured in region: 4 km E Norcia (PG), on

  • 12-10-2019 19:49:32 (UTC)
  • 12-10-2019 21:49:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8010, 13.1370 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
Norcia PG 4 4957 4957
Castelsantangelo sul Nera MC 11 281 5238
Preci PG 12 724 5962
Arquata del Tronto AP 13 1178 7140
Cascia PG 14 3217 10357
Accumoli RI 15 667 11024
Visso MC 15 1107 12131
Ussita MC 16 444 12575
Montegallo AP 17 523 13098
Cerreto di Spoleto PG 18 1075 14173
Montemonaco AP 19 604 14777
Poggiodomo PG 19 117 14894
Sellano PG 20 1079 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
49 Km W of Teramo (54892 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km W of Pescara (121014 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
98 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 2019-10-12
19:49:32		 42.8013 13.1373 10 2019-10-12
20:20:54		 Sala Sismica INGV-Roma 73223271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-12 19:49:32 ± 0.07
Latitude 42.8013 ± 0.0036
Longitude 13.1373 ± 0.0074
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 73223271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 541
Semi-minor axis of confidence ellipse (meter) 353
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 83
Circular confidence region, given by single value of horizontal uncertainty (meter) 540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.52880
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 73223271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-12 20:20:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSNT.HHZ. 2019-10-12T19:50:22.45 3.0 undecidable manual S 3.59 0
IV.TOLF.HHZ. 2019-10-12T19:50:09.43 3.0 undecidable manual S -0.14 0
IV.ARVD.HHZ. 2019-10-12T19:49:57.00 3.0 undecidable manual S -0.52 0
IV.EL6.EHZ. 2019-10-12T19:49:51.35 0.3 undecidable manual S 357 58.6968 50 0.37 65
IV.MOMA.HNE. 2019-10-12T19:49:48.00 0.3 undecidable manual S 271 46.1205 50 0.35 67
IV.RM33.EHZ. 2019-10-12T19:49:43.99 0.6 undecidable manual S 169 33.0447 50 -0.15 47
IV.EL6.EHZ. 2019-10-12T19:49:43.23 0.6 undecidable manual P 357 58.6968 50 0.01 47
IV.CSP1.EHZ. 2019-10-12T19:49:43.86 0.3 undecidable manual S 10 32.745 50 -0.2 71
IT.MTCL.HGZ. 2019-10-12T19:49:41.23 0.3 undecidable manual S 332 24.1536 112 -0.42 68
IV.FDMO.HHZ. 2019-10-12T19:49:41.92 0.3 undecidable manual S 351 26.4513 50 -0.46 68
IV.MOMA.HNE. 2019-10-12T19:49:41.84 0.3 undecidable manual P 271 46.1205 50 0.55 63
IV.LNSS.HHZ. 2019-10-12T19:49:41.28 0.6 undecidable manual S 200 23.3544 113 -0.13 49
IV.MTRA.EHZ. 2019-10-12T19:49:40.84 0.3 undecidable manual S 103 21.6672 114 -0.02 75
IV.ARRO.EHZ. 2019-10-12T19:49:40.18 0.6 negative manual P 231 39.0276 50 -0.01 48
IV.CSP1.EHZ. 2019-10-12T19:49:39.16 1.0 negative manual P 10 32.745 50 -0.06 24
IV.RM33.EHZ. 2019-10-12T19:49:39.14 0.3 undecidable manual P 169 33.0447 50 -0.12 72
IV.FDMO.HHZ. 2019-10-12T19:49:38.00 0.3 undecidable manual P 351 26.4513 50 -0.25 71
IV.MC2.EHZ. 2019-10-12T19:49:38.78 0.3 undecidable manual S 19 12.876 127 0.54 68
IV.LNSS.HHZ. 2019-10-12T19:49:37.61 0.3 undecidable manual P 200 23.3544 113 -0.08 74
IV.SMA1.EHZ. 2019-10-12T19:49:37.91 0.6 undecidable manual P 139 24.8529 112 -0.06 49
IT.MTCL.HGZ. 2019-10-12T19:49:37.63 0.3 undecidable manual P 332 24.1536 112 -0.19 72
IV.MTRA.EHZ. 2019-10-12T19:49:37.40 0.3 undecidable manual P 103 21.6672 114 0.02 75
IV.NRCA.HNZ. 2019-10-12T19:49:36.07 0.1 undecidable manual S 332 3.996 158 -0.23 98
IV.MC2.EHZ. 2019-10-12T19:49:36.15 0.1 positive manual P 19 12.876 127 0.29 96
IV.NRCA.HNZ. 2019-10-12T19:49:34.88 0.1 undecidable manual P 332 3.996 158 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.0 0.000065803055 0.128 AML other m 2019-10-12T19:49:41.37
IV.MTRA.EHN. ML:0.9 0.00005500131499999999 0.128 AML other m 2019-10-12T19:49:41.36
IV.MTRA.HNE. ML:1.1 0.00008382323 0.256 AML other m 2019-10-12T19:49:41.72
IV.LNSS.HHE. ML:1.7 0.0002961627 0.1152 AML other m 2019-10-12T19:49:41.82
IV.LNSS.HHN. ML:1.6 0.00023769050000000002 0.128 AML other m 2019-10-12T19:49:41.85
IV.LNSS.HNE. ML:1.6 0.00027299955 0.1024 AML other m 2019-10-12T19:49:41.82
IV.LNSS.HNN. ML:1.5 0.0002191837 0.128 AML other m 2019-10-12T19:49:41.91
IV.SMA1.EHE. ML:0.8 0.000040660005 0.2176 AML other m 2019-10-12T19:49:45.20
IV.SMA1.EHN. ML:0.7 0.000032131555 0.2432 AML other m 2019-10-12T19:49:45.91
IV.FDMO.HHE. ML:1.0 0.000059734175 0.128 AML other m 2019-10-12T19:49:42.67
IV.FDMO.HHN. ML:1.0 0.00005540232 0.0896 AML other m 2019-10-12T19:49:42.42
IV.RM33.EHE. ML:0.8 0.000022879715 0.1536 AML other m 2019-10-12T19:49:45.17
IV.RM33.EHN. ML:0.8 0.00002503584 0.1792 AML other m 2019-10-12T19:49:45.30
IV.CSP1.EHE. ML:1.0 0.000037708455000000004 0.128 AML other m 2019-10-12T19:49:45.31
IV.CSP1.EHN. ML:1.0 0.00004217404 0.1536 AML other m 2019-10-12T19:49:44.72
IV.EL6.EHE. ML:1.2 0.0000286403848 0.1024 AML other m 2019-10-12T19:49:52.42
IV.EL6.EHN. ML:1.2 0.000034897349 0.1664 AML other m 2019-10-12T19:49:52.23
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