Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 19-09-2020 and time 22:24:08 (UTC) in region 4 km E Castelsantangelo sul Nera (MC)

A magnitude ML 1.4 earthquake occured in region: 4 km E Castelsantangelo sul Nera (MC), on

  • 19-09-2020 22:24:08 (UTC)
  • 20-09-2020 00:24:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9040, 13.1970 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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
Ussita MC 7 444 725
Visso MC 9 1107 1832
Bolognola MC 10 142 1974
Montemonaco AP 11 604 2578
Montefortino FM 13 1178 3756
Montegallo AP 13 523 4279
Preci PG 13 724 5003
Acquacanina MC 14 121 5124
Norcia PG 15 4957 10081
Fiastra MC 15 559 10640
Amandola FM 16 3629 14269
Arquata del Tronto AP 17 1178 15447
Sarnano MC 17 3264 18711
Fiordimonte MC 17 202 18913
Comunanza AP 19 3166 22079
Monte Cavallo MC 19 145 22224
Pieve Torina MC 20 1458 23682
Pievebovigliana MC 20 866 24548

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
50 Km NW of Teramo (54892 inhabitants)
59 Km NE of Terni (111501 inhabitants)
64 Km N of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
96 Km NW 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
Reviewed
Rev100 		ML 1.4 2020-09-19
22:24:08		 42.9043 13.1973 11 2020-09-19
22:42:12		 Sala Sismica INGV-Roma 83037411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-19 22:24:08 ± 0.05
Latitude 42.9043 ± 0.0027
Longitude 13.1973 ± 0.0037
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 83037411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 332
Semi-minor axis of confidence ellipse (meter) 309
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
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) 64
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47035
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.5
Num. used stations 6
Type of magnitude ML
Reference to an origin 83037411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-19 22:42:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
HL.VLS.HHZ. 2020-09-19T22:25:57.09 3.0 undecidable manual Pn 4.7 0
IV.TDS.HHZ. 2020-09-19T22:25:47.83 3.0 undecidable manual Sn -7.87 0
IV.HLNI.HHZ. 2020-09-19T22:25:41.40 3.0 undecidable manual Pg 14.78 0
IV.PZUN.HHZ. 2020-09-19T22:25:37.64 3.0 undecidable manual Sg 6.54 0
CR.STON.BHZ. 2020-09-19T22:25:36.10 3.0 undecidable manual Sn -4.38 0
IV.ECTS.HHZ. 2020-09-19T22:25:30.58 3.0 undecidable manual Pg 10.07 0
IV.SPS2.HHZ. 2020-09-19T22:25:27.48 3.0 negative manual Pg 17.92 0
ST.GAGG.HHZ. 2020-09-19T22:25:24.35 3.0 undecidable manual Sn -3.49 0
IV.ZONE.HHZ. 2020-09-19T22:25:02.87 3.0 undecidable manual Pg 13.21 0
GU.CANO.HHZ. 2020-09-19T22:24:54.52 3.0 negative manual Pn 3.45 0
IV.MIDA.HHZ. 2020-09-19T22:24:51.23 3.0 undecidable manual Sn -2.53 0
IV.SARZ.HHZ. 2020-09-19T22:24:49.77 3.0 negative manual Pn 0.63 0
IV.MTMR.EHZ. 2020-09-19T22:24:46.72 3.0 undecidable manual Pg 3.44 0
GU.GSCL.HHZ. 2020-09-19T22:24:30.14 3.0 negative manual Pn -1.68 0
IV.ASSB.HHZ. 2020-09-19T22:24:23.53 0.6 undecidable manual S 290 46.3203 50 0.1 63
IV.RMP.HHZ. 2020-09-19T22:24:20.50 3.0 positive manual P -1.3 0
IV.LNSS.HHZ. 2020-09-19T22:24:20.76 0.6 undecidable manual S 201 35.8419 50 0.14 63
IV.CRTC.HHZ. 2020-09-19T22:24:18.35 3.0 undecidable manual Pn 2.37 0
IV.MOMA.HNZ. 2020-09-19T22:24:18.58 0.3 undecidable manual P 258 52.2033 50 0.56 83
IV.CESI.HNZ. 2020-09-19T22:24:18.07 0.6 undecidable manual S 295 26.2515 50 0 65
IV.ASSB.HHZ. 2020-09-19T22:24:17.20 0.3 undecidable manual P 290 46.3203 50 0.1 93
IV.PF6.EHE. 2020-09-19T22:24:17.77 0.6 undecidable manual S 359 25.9518 50 -0.21 62
IV.MF5.EHZ. 2020-09-19T22:24:17.74 0.6 undecidable manual S 66 23.2545 50 0.48 60
IV.EL6.EHN. 2020-09-19T22:24:17.54 0.3 undecidable manual P 351 47.8188 50 0.21 91
IV.CSP1.EHN. 2020-09-19T22:24:16.42 0.6 undecidable manual S 2 20.868 117 -0.13 65
IV.LNSS.HHZ. 2020-09-19T22:24:15.41 0.3 undecidable manual P 201 35.8419 50 -0.08 95
IT.MTCL.HGZ. 2020-09-19T22:24:15.80 0.6 undecidable manual S 302 18.87 119 -0.17 65
IV.GAVE.HNE. 2020-09-19T22:24:15.17 0.3 undecidable manual P 226 34.0437 50 -0.05 95
IV.FDMO.HHZ. 2020-09-19T22:24:15.30 0.6 undecidable manual S 329 17.1717 121 -0.15 65
IV.SMA1.EHE. 2020-09-19T22:24:14.78 0.3 undecidable manual P 160 32.3454 50 -0.18 93
IV.MML1.HNE. 2020-09-19T22:24:14.49 0.3 undecidable manual P 322 29.5482 50 -0.03 97
IV.MTRA.HNN. 2020-09-19T22:24:13.19 0.3 undecidable manual P 135 23.0547 50 -0.33 92
IV.CESI.HNZ. 2020-09-19T22:24:13.73 0.3 undecidable manual P 295 26.2515 50 -0.29 92
IV.PF6.EHE. 2020-09-19T22:24:13.88 0.3 undecidable manual P 359 25.9518 50 -0.08 96
IV.MF5.EHZ. 2020-09-19T22:24:13.77 0.3 undecidable manual P 66 23.2545 50 0.23 95
IV.NRCA.HHZ. 2020-09-19T22:24:13.43 0.6 undecidable manual S 221 10.3785 135 -0.14 66
IV.MMO1.HNN. 2020-09-19T22:24:13.38 0.6 undecidable manual S 93 10.5783 135 -0.24 65
IV.CSP1.EHN. 2020-09-19T22:24:13.10 0.3 undecidable manual P 2 20.868 117 -0.03 99
IV.FDMO.HHZ. 2020-09-19T22:24:12.45 0.3 undecidable manual P 329 17.1717 121 -0.04 99
IV.MC2.EHZ. 2020-09-19T22:24:12.39 0.6 undecidable manual S 319 0.999 174 0.28 64
IT.MTCL.HGZ. 2020-09-19T22:24:12.75 0.3 undecidable manual P 302 18.87 119 -0.05 99
IV.NRCA.HHZ. 2020-09-19T22:24:11.48 0.3 undecidable manual P 221 10.3785 135 0.06 99
IV.MMO1.HNN. 2020-09-19T22:24:11.37 0.3 undecidable manual P 93 10.5783 135 -0.08 100
IV.MC2.EHZ. 2020-09-19T22:24:10.85 0.3 undecidable manual P 319 0.999 174 0.28 96
IV.MURB.HHZ. 2020-09-19T22:24:09.72 3.0 undecidable manual Pn 0.29 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.7 0.0006131476 0.0768 AML other m 2020-09-19T22:24:13.75
IV.NRCA.HHN. ML:1.4 0.0003020004 0.0768 AML other m 2020-09-19T22:24:13.56
IV.NRCA.HNE. ML:1.6 0.0005459446 0.0896 AML other m 2020-09-19T22:24:13.75
IV.NRCA.HNN. ML:1.4 0.0003303856 0.0768 AML other m 2020-09-19T22:24:13.56
IV.FDMO.HHE. ML:0.2 0.00001312559 0.1024 AML other m 2020-09-19T22:24:15.55
IV.FDMO.HHN. ML:0.4 0.0000182040555 0.2432 AML other m 2020-09-19T22:24:15.51
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