Earthquake with magnitude of ML 1.5 on date 18-09-2019 and time 10:46:46 (Italy) in region 4 km E Norcia (PG)

A magnitude ML 1.5 earthquake occured in region: 4 km E Norcia (PG), on

  • 18-09-2019 08:46:46 (UTC)
  • 18-09-2019 10:46:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.81, 13.13 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.

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 10 281 5238
Preci PG 11 724 5962
Arquata del Tronto AP 14 1178 7140
Cascia PG 14 3217 10357
Visso MC 14 1107 11464
Ussita MC 15 444 11908
Accumoli RI 16 667 12575
Montegallo AP 17 523 13098
Cerreto di Spoleto PG 18 1075 14173
Montemonaco AP 19 604 14777
Sellano PG 19 1079 15856
Poggiodomo PG 19 117 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)
50 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
69 Km E of Perugia (166134 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km W of Pescara (121014 inhabitants)
98 Km N of Tivoli (56533 inhabitants)
99 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
Rev 100 ML 1.5 2019-09-18
08:46:46
42.81 13.13 11 2019-09-18
13:03:27
Sala Sismica INGV-Roma 72520011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-18 08:46:46 ± 0.05
Latitude 42.81 ± 0.00
Longitude 13.13 ± 0.00
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 72520011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 379
Semi-minor axis of confidence ellipse (meter) 264
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 97
Circular confidence region, given by single value of horizontal uncertainty (meter) 380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.02878
Epicentral distance of station farthest from the epicenter (degree) 0.30577
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 72520011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-18 13:03:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RM33.EHZ. 2019-09-18T08:46:58.02 0.6 undecidable manual S 169 0.3058 50 -0.16 48
IV.CSP1.EHZ. 2019-09-18T08:46:57.60 0.3 undecidable manual S 10 0.2878 50 -0.05 74
IV.GAVE.EHZ. 2019-09-18T08:46:55.55 0.6 undecidable manual S 237 0.2113 50 0.17 49
IV.LNSS.HHZ. 2019-09-18T08:46:55.75 0.6 undecidable manual S 199 0.2167 50 0.19 48
IT.MTCL.HGZ. 2019-09-18T08:46:55.08 0.6 undecidable manual S 332 0.2095 50 -0.26 48
IV.MTRA.EHZ. 2019-09-18T08:46:55.06 0.6 undecidable manual S 105 0.1996 50 0.02 50
IV.RM33.EHZ. 2019-09-18T08:46:53.20 1.0 undecidable manual P 169 0.3058 50 -0.08 24
IV.FEMA.HNZ. 2019-09-18T08:46:53.94 0.6 undecidable manual S 338 0.1655 120 0 51
IV.GUMA.HHZ. 2019-09-18T08:46:53.36 0.3 negative manual P 30 0.2932 50 0.29 70
IV.MMO1.EHZ. 2019-09-18T08:46:53.85 0.6 undecidable manual S 57 0.1682 120 -0.17 49
IV.CSP1.EHZ. 2019-09-18T08:46:52.98 0.3 positive manual P 10 0.2878 50 0.01 74
IV.MC2.EHZ. 2019-09-18T08:46:52.62 0.6 undecidable manual S 21 0.1106 131 0.41 47
IT.MTCL.HGZ. 2019-09-18T08:46:51.49 0.1 undecidable manual P 332 0.2095 50 -0.15 98
IV.MTRA.EHZ. 2019-09-18T08:46:51.35 1.0 undecidable manual P 105 0.1996 50 -0.11 25
IV.GAVE.EHZ. 2019-09-18T08:46:51.68 0.6 positive manual P 237 0.2113 50 0.02 50
IV.LNSS.HHZ. 2019-09-18T08:46:51.74 0.1 negative manual P 199 0.2167 50 -0.02 100
IV.MMO1.EHZ. 2019-09-18T08:46:50.71 0.3 positive manual P 57 0.1682 120 -0.16 74
IV.NRCA.HNZ. 2019-09-18T08:46:50.03 0.6 undecidable manual S 330 0.0288 163 -0.41 48
IV.FEMA.HNZ. 2019-09-18T08:46:50.91 0.1 undecidable manual P 338 0.1655 120 0.08 100
IV.MC2.EHZ. 2019-09-18T08:46:49.98 0.1 undecidable manual P 21 0.1106 131 0.15 99
IV.NRCA.HNZ. 2019-09-18T08:46:48.85 0.3 undecidable manual P 330 0.0288 163 0.04 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:1.9 0.00127 0.14 AML other m 2019-09-18T08:46:50.18
IV.NRCA.HHN. ML:1.9 0.001445 0.14 AML other m 2019-09-18T08:46:50.18
IV.NRCA.HHE. ML:1.7 0.0009435 0.62 AML other m 2019-09-18T08:46:50.24
IV.NRCA.HNE. ML:1.7 0.0009435 0.06 AML other m 2019-09-18T08:46:50.24
IV.MTRA.EHE. ML:1 6.395E-5 1.18 AML other m 2019-09-18T08:46:54.20
IV.MTRA.EHN. ML:1 6.745E-5 0.28 AML other m 2019-09-18T08:46:55.33
IV.LNSS.HHE. ML:1.6 0.0002365 1.6 AML other m 2019-09-18T08:46:55.86
IV.LNSS.HHN. ML:1.6 0.0002445 1.84 AML other m 2019-09-18T08:46:55.92
IV.GAVE.EHN. ML:1.2 9.77E-5 0.18 AML other m 2019-09-18T08:46:56.39
IV.GAVE.EHE. ML:1.2 0.000112 0.62 AML other m 2019-09-18T08:46:57.45
IV.GUMA.HHE. ML:1.4 9.985E-5 0.7 AML other m 2019-09-18T08:47:01.85
IV.GUMA.HHN. ML:1.3 9.055E-5 0.68 AML other m 2019-09-18T08:47:04.39
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download