Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 23-09-2019 and time 09:43:12 (Italy) in region Castelsantangelo sul Nera (MC)

A magnitude ML 1.6 earthquake occured in region: Castelsantangelo sul Nera (MC), on

  • 23-09-2019 07:43:12 (UTC)
  • 23-09-2019 09:43:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8950, 13.1600 at 14 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Castelsantangelo sul Nera MC 1 281 281
Ussita MC 6 444 725
Visso MC 7 1107 1832
Preci PG 10 724 2556
Norcia PG 13 4957 7513
Bolognola MC 13 142 7655
Montemonaco AP 14 604 8259
Acquacanina MC 15 121 8380
Montegallo AP 15 523 8903
Montefortino FM 16 1178 10081
Fiastra MC 16 559 10640
Fiordimonte MC 17 202 10842
Monte Cavallo MC 17 145 10987
Arquata del Tronto AP 18 1178 12165
Amandola FM 19 3629 15794
Pieve Torina MC 19 1458 17252
Sellano PG 19 1079 18331
Sarnano MC 20 3264 21595
Pievebovigliana MC 20 866 22461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
52 Km NW of Teramo (54892 inhabitants)
56 Km NE of Terni (111501 inhabitants)
64 Km NW of L'Aquila (69753 inhabitants)
67 Km E of Perugia (166134 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
99 Km W of Pescara (121014 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
Bulletin
Rev1000 		ML 1.6 2019-09-23
07:43:12		 42.895 13.1595 14 2020-02-28
16:41:52		 Bollettino Sismico Italiano INGV 72727721
Reviewed
Rev100 		ML 1.6 2019-09-23
07:43:12		 42.8917 13.1552 14 2019-09-23
07:50:51		 Sala Sismica INGV-Roma 72686401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-23 07:43:12 ± 0.05
Latitude 42.8950 ± 0.0018
Longitude 13.1595 ± 0.0037
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 72727721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 330
Semi-minor axis of confidence ellipse (meter) 35
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 79
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 40
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.70777
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 72686401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-23 07:50:51

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 72727721
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-09-24 15:40:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CPGN.EHZ. 2019-09-23T07:43:48.83 3.0 undecidable manual S 0.08 0
IV.PE3.EHZ. 2019-09-23T07:43:42.83 3.0 undecidable manual S -2.1 0
IV.EL6.EHZ. 2019-09-23T07:43:28.30 0.6 undecidable manual S 354 48.4182 94 0.58 42
IV.ARRO.EHZ. 2019-09-23T07:43:27.63 3.0 undecidable manual S -0.26 0
IV.VCEL.EHN. 2019-09-23T07:43:26.01 1.0 undecidable manual P 135 78.5658 92 0.16 22
IV.RM33.EHZ. 2019-09-23T07:43:26.60 1.0 undecidable manual S 174 43.0236 95 0.31 22
IV.ASSB.HHZ. 2019-09-23T07:43:26.60 0.6 undecidable manual S 292 43.8228 95 0.1 47
IV.GAVE.EHE. 2019-09-23T07:43:23.20 0.6 undecidable manual S 224 31.1466 98 0.06 48
IV.GIGS.HHN. 2019-09-23T07:43:22.64 1.0 undecidable manual P 145 59.496 93 -0.27 22
IV.MML1.HNE. 2019-09-23T07:43:22.50 0.3 undecidable manual S 328 28.6491 99 0.04 73
IV.MF5.EHZ. 2019-09-23T07:43:22.60 0.6 undecidable manual S 67 26.4513 100 0.71 42
IV.CESI.HHZ. 2019-09-23T07:43:21.30 0.1 undecidable manual S 301 24.0537 102 0.05 98
IV.MOMA.HHZ. 2019-09-23T07:43:21.47 0.3 undecidable manual P 258 49.0176 94 0.17 68
IV.MTRA.EHZ. 2019-09-23T07:43:21.30 0.1 undecidable manual S 128 24.6531 101 -0.11 97
IV.EL6.EHZ. 2019-09-23T07:43:21.41 0.3 undecidable manual P 354 48.4182 94 0.2 69
IV.GUMA.HHZ. 2019-09-23T07:43:21.50 0.1 undecidable manual S 37 23.4543 103 0.4 92
IV.PF6.EHN. 2019-09-23T07:43:21.70 0.3 undecidable manual S 6 27.0507 100 -0.36 68
IV.ASSB.HHZ. 2019-09-23T07:43:20.50 0.3 undecidable manual P 292 43.8228 95 0 72
IV.CSP1.EHZ. 2019-09-23T07:43:20.60 0.1 undecidable manual S 10 22.1556 104 -0.17 95
IV.RM33.EHZ. 2019-09-23T07:43:20.39 0.6 undecidable manual P 174 43.0236 95 0.01 47
IV.TERO.HHZ. 2019-09-23T07:43:20.88 0.3 undecidable manual P 130 47.1195 94 -0.13 69
IV.FDMO.HHZ. 2019-09-23T07:43:19.20 0.1 undecidable manual S 340 16.7721 113 -0.2 96
IT.MTCL.HGZ. 2019-09-23T07:43:19.30 0.1 undecidable manual S 310 16.9719 113 -0.16 97
IV.SMA1.EHZ. 2019-09-23T07:43:18.79 0.3 undecidable manual P 154 32.6451 97 0 73
IV.GAVE.EHE. 2019-09-23T07:43:18.43 0.6 undecidable manual P 224 31.1466 98 -0.13 48
IV.MML1.HNE. 2019-09-23T07:43:18.04 0.1 undecidable manual P 328 28.6491 99 -0.14 95
IV.MMO1.EHZ. 2019-09-23T07:43:18.30 0.1 undecidable manual S 88 13.5753 121 -0.35 93
IV.SNTG.HHE. 2019-09-23T07:43:18.04 3.0 undecidable manual P 43.7229 -2.44 0
IV.MF5.EHZ. 2019-09-23T07:43:18.02 0.1 undecidable manual P 67 26.4513 100 0.17 96
IV.T1299.HNN. 2019-09-23T07:43:18.57 0.6 undecidable manual P 161 30.6471 98 0.09 48
IV.FEMA.HNE. 2019-09-23T07:43:18.40 0.3 undecidable manual S 310 11.5773 128 0.19 72
IV.MTRA.EHZ. 2019-09-23T07:43:17.58 0.1 undecidable manual P 128 24.6531 101 0.01 98
IV.PF6.EHN. 2019-09-23T07:43:17.70 0.1 undecidable manual P 6 27.0507 100 -0.24 93
IV.CSP1.EHZ. 2019-09-23T07:43:17.15 0.1 undecidable manual P 10 22.1556 104 -0.04 98
IV.NRCA.HNZ. 2019-09-23T07:43:17.30 0.1 undecidable manual S 208 7.7811 142 -0.18 100
IV.GUMA.HHZ. 2019-09-23T07:43:17.50 0.1 positive manual P 37 23.4543 103 0.11 97
IV.MC2.EHZ. 2019-09-23T07:43:17.00 0.3 undecidable manual S 53 2.997 164 0.09 75
IV.CESI.HHZ. 2019-09-23T07:43:17.47 0.1 negative manual P 301 24.0537 102 0 99
IV.FDMO.HHZ. 2019-09-23T07:43:16.29 0.1 undecidable manual P 340 16.7721 113 -0.12 97
IT.MTCL.HGZ. 2019-09-23T07:43:16.35 0.1 negative manual P 310 16.9719 113 -0.09 98
IV.NRCA.HNZ. 2019-09-23T07:43:15.36 0.1 undecidable manual P 208 7.7811 142 0.06 99
IV.MMO1.EHZ. 2019-09-23T07:43:15.86 0.1 positive manual P 88 13.5753 121 -0.11 98
IV.MC2.EHZ. 2019-09-23T07:43:15.12 0.1 negative manual P 53 2.997 164 0.15 99
IV.FEMA.HNE. 2019-09-23T07:43:15.82 0.1 negative manual P 310 11.5773 128 0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.1 0.0015099999999999998 0.14 AML other m 2019-09-23T07:43:17.43
IV.NRCA.HHN. ML:2.1 0.0015550000000000002 0.12 AML other m 2019-09-23T07:43:17.43
IV.NRCA.HNE. ML:1.9 0.0008685 0.18 AML other m 2019-09-23T07:43:17.48
IV.NRCA.HHE. ML:1.9 0.00095 0.18 AML other m 2019-09-23T07:43:17.48
IV.FDMO.HHN. ML:1.7 0.0003715 0.18 AML other m 2019-09-23T07:43:19.45
IV.FDMO.HHE. ML:1.4 0.00018099999999999998 0.32 AML other m 2019-09-23T07:43:19.47
IV.MTRA.EHN. ML:1.4 0.0001315 0.76 AML other m 2019-09-23T07:43:21.05
IV.CESI.HHE. ML:1.5 0.0001675 0.2 AML other m 2019-09-23T07:43:21.75
IV.CESI.HHN. ML:1.6 0.00022999999999999998 0.14 AML other m 2019-09-23T07:43:21.65
IV.GUMA.HHE. ML:1.7 0.000279 0.36 AML other m 2019-09-23T07:43:21.82
IV.MTRA.EHE. ML:1.4 0.0001305 0.48 AML other m 2019-09-23T07:43:21.91
IV.CSP1.EHE. ML:1.5 0.0001915 0.72 AML other m 2019-09-23T07:43:21.58
IV.GUMA.HHN. ML:1.7 0.000265 0.62 AML other m 2019-09-23T07:43:22.01
IV.CSP1.EHN. ML:1.5 0.0002155 0.84 AML other m 2019-09-23T07:43:22.36
IV.RM33.EHE. ML:1.6 0.0001085 0.94 AML other m 2019-09-23T07:43:27.81
IV.TERO.HHN. ML:1.2 0.0000409 1.76 AML other m 2019-09-23T07:43:27.94
IV.RM33.EHN. ML:1.3 0.0000665 0.26 AML other m 2019-09-23T07:43:27.97
IV.TERO.HHE. ML:1.2 0.0000422 1 AML other m 2019-09-23T07:43:28.27
IV.EL6.EHN. ML:1.5 0.00008389999999999999 0.98 AML other m 2019-09-23T07:43:28.87
IV.EL6.EHE. ML:1.6 0.00011015 0.44 AML other m 2019-09-23T07:43:28.96
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