Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 27-10-2019 and time 17:27:47 (UTC) in region 4 km W Castelsantangelo sul Nera (MC)

A magnitude ML 1.0 earthquake occured in region: 4 km W Castelsantangelo sul Nera (MC), on

  • 27-10-2019 17:27:47 (UTC)
  • 27-10-2019 18:27:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8850, 13.1060 at 8 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
Castelsantangelo sul Nera MC 4 281 281
Visso MC 5 1107 1388
Preci PG 5 724 2112
Ussita MC 7 444 2556
Norcia PG 10 4957 7513
Sellano PG 15 1079 8592
Monte Cavallo MC 15 145 8737
Bolognola MC 16 142 8879
Cerreto di Spoleto PG 17 1075 9954
Fiordimonte MC 17 202 10156
Acquacanina MC 17 121 10277
Fiastra MC 17 559 10836
Montemonaco AP 18 604 11440
Pieve Torina MC 18 1458 12898
Montegallo AP 19 523 13421
Pievebovigliana MC 20 866 14287
Cascia PG 20 3217 17504
Arquata del Tronto AP 20 1178 18682

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
52 Km NE of Terni (111501 inhabitants)
55 Km W of Teramo (54892 inhabitants)
63 Km E of Perugia (166134 inhabitants)
64 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
95 Km W of Montesilvano (53738 inhabitants)
97 Km NE of Viterbo (67173 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 1.0 2019-10-27
17:27:47		 42.8852 13.1055 8 2019-10-27
17:37:27		 Sala Sismica INGV-Roma 73476611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-27 17:27:47 ± 0.11
Latitude 42.8852 ± 0.0045
Longitude 13.1055 ± 0.0061
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73476611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 437
Semi-minor axis of confidence ellipse (meter) 399
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48024
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 73476611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-27 17:37:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CR.STON.BHZ. 2019-10-27T17:29:37.80 3.0 undecidable manual Sg 9.35 0
IV.ZONE.HHZ. 2019-10-27T17:29:23.48 3.0 undecidable manual Sg 4.94 0
IV.CAPA.HHZ. 2019-10-27T17:29:12.74 3.0 undecidable manual Sg 4.51 0
IV.ORI.HHZ. 2019-10-27T17:28:57.76 3.0 undecidable manual Pg 12.37 0
CR.ZAG.BHZ. 2019-10-27T17:28:49.72 3.0 undecidable manual Pg 6.84 0
IT.LRNO.HNZ. 2019-10-27T17:28:40.21 3.0 undecidable manual Sn -5.54 0
IV.FIR.HHZ. 2019-10-27T17:28:28.56 3.0 undecidable manual S 0.77 0
RD.PGF.BHZ. 2019-10-27T17:28:24.48 3.0 undecidable manual Pn -1.21 0
IV.EL6.EHZ. 2019-10-27T17:28:03.53 0.6 undecidable manual S 360 49.3173 50 0.26 44
IV.PTQR.HHZ. 2019-10-27T17:28:00.28 3.0 undecidable manual P -3.34 0
IV.SAMA.HHZ. 2019-10-27T17:28:00.17 3.0 undecidable manual P -3.85 0
IV.MF5.EHZ. 2019-10-27T17:27:58.56 0.3 undecidable manual S 68 30.9468 105 0.43 66
IV.PF6.EHE. 2019-10-27T17:27:57.08 0.6 undecidable manual S 14 28.9488 106 -0.38 45
IV.FOSV.EHZ. 2019-10-27T17:27:57.17 0.3 undecidable manual P 329 53.3022 50 0.14 67
IV.CSP1.EHZ. 2019-10-27T17:27:56.07 0.6 undecidable manual S 19 24.2535 109 0.15 47
IV.TERO.HHZ. 2019-10-27T17:27:56.47 3.0 positive manual P -2.99 0
IV.MNTT.EHZ. 2019-10-27T17:27:56.27 1.0 negative manual P 64 44.3223 50 0.62 20
IV.EL6.EHZ. 2019-10-27T17:27:56.05 0.1 undecidable manual P 360 49.3173 50 -0.35 87
IV.MML1.EHZ. 2019-10-27T17:27:56.90 0.6 undecidable manual S 337 27.5502 107 -0.1 47
IV.CESI.HHZ. 2019-10-27T17:27:55.10 0.6 undecidable manual S 309 21.0678 111 0.24 47
IT.MTCL.HGE. 2019-10-27T17:27:53.01 0.6 undecidable manual S 324 14.874 119 0.11 48
IV.MF5.EHZ. 2019-10-27T17:27:53.63 0.6 undecidable manual P 68 30.9468 105 0.19 46
IV.FDMO.HHZ. 2019-10-27T17:27:53.52 0.3 undecidable manual S 355 16.872 116 -0.01 74
IV.MML1.EHZ. 2019-10-27T17:27:52.70 0.1 undecidable manual P 337 27.5502 107 -0.09 95
IV.CSP1.EHZ. 2019-10-27T17:27:52.07 0.6 negative manual P 19 24.2535 109 -0.09 48
IV.PF6.EHE. 2019-10-27T17:27:52.62 0.3 undecidable manual P 14 28.9488 106 -0.43 66
IV.LATE.HHZ. 2019-10-27T17:27:52.57 3.0 negative manual Pn -2.53 0
IV.GUMA.HHZ. 2019-10-27T17:27:51.88 0.6 undecidable manual P 43 27.1506 107 -0.82 38
IV.MC2.EHZ. 2019-10-27T17:27:51.02 0.6 undecidable manual S 67 7.3815 138 0.17 48
IV.CESI.HHZ. 2019-10-27T17:27:51.64 0.1 undecidable manual P 309 21.0678 111 0.09 96
IV.FDMO.HHZ. 2019-10-27T17:27:50.78 0.3 undecidable manual P 355 16.872 116 0 74
IT.MTCL.HGE. 2019-10-27T17:27:50.52 0.1 undecidable manual P 324 14.874 119 0.1 97
IV.NRCA.HNE. 2019-10-27T17:27:50.15 0.6 undecidable manual S 173 5.7942 145 -0.35 47
IV.MC2.EHZ. 2019-10-27T17:27:49.17 1.0 undecidable manual P 67 7.3815 138 -0.06 25
IV.NRCA.HNE. 2019-10-27T17:27:49.06 0.1 undecidable manual P 173 5.7942 145 0.03 100
IV.FEMA.HNE. 2019-10-27T17:27:49.76 0.1 undecidable manual P 332 9.6792 130 0.2 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.1 0.000106 0.68 AML other m 2019-10-27T17:27:54.47
IV.FDMO.HHE. ML:1.2 0.00013700000000000002 0.16 AML other m 2019-10-27T17:27:54.55
IV.TERO.HHE. ML:0.9 0.00001875 0.6 AML other m 2019-10-27T17:28:03.61
IV.TERO.HHN. ML:1.0 0.000023650000000000002 0.52 AML other m 2019-10-27T17:28:03.79
IV.EL6.EHE. ML:1.0 0.00002530215 0.2816 AML other m 2019-10-27T17:28:03.56
IV.EL6.EHN. ML:1.0 0.00003116675 0.7168 AML other m 2019-10-27T17:28:03.91
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