Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 29-09-2021 and time 21:16:13 (Italy) in region Castelsantangelo sul Nera (MC)

A magnitude ML 1.5 earthquake occured in region: Castelsantangelo sul Nera (MC), on

  • 29-09-2021 19:16:13 (UTC)
  • 29-09-2021 21:16:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8990, 13.1550 at 8 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 0 281 281
Ussita MC 5 444 725
Visso MC 7 1107 1832
Preci PG 10 724 2556
Bolognola MC 12 142 2698
Norcia PG 13 4957 7655
Montemonaco AP 14 604 8259
Acquacanina MC 15 121 8380
Fiastra MC 15 559 8939
Montegallo AP 16 523 9462
Montefortino FM 16 1178 10640
Fiordimonte MC 16 202 10842
Monte Cavallo MC 16 145 10987
Arquata del Tronto AP 18 1178 12165
Pieve Torina MC 18 1458 13623
Sellano PG 19 1079 14702
Amandola FM 19 3629 18331
Pievebovigliana MC 19 866 19197
Sarnano MC 19 3264 22461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 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)
85 Km SW of Ancona (100861 inhabitants)
92 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 1.5 2021-09-29
19:16:13		 42.8988 13.155 8 2022-03-30
13:04:38		 Bollettino Sismico Italiano INGV 101108431
Reviewed
Rev100 		ML 1.4 2021-09-29
19:16:14		 42.9042 13.1623 5 2021-09-29
19:23:12		 Sala Sismica INGV-Roma 96041601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-29 19:16:13 ± 0.06
Latitude 42.8988 ± 0.0027
Longitude 13.1550 ± 0.0049
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 101108431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 163
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 245
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 39
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.02788
Epicentral distance of station farthest from the epicenter (degree) 0.47304
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 101108431
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-18 11:22:50

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 34
Type of magnitude ML
Reference to an origin 96041601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-29 19:23:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2021-09-29T19:16:28.56 0.6 undecidable manual S 292 43.3233 50 -0.09 47
IV.LNSS.HHZ. 2021-09-29T19:16:26.22 0.6 undecidable manual S 196 34.1436 103 0.19 47
IV.SMA1.EHZ. 2021-09-29T19:16:25.60 0.6 undecidable manual S 154 33.2445 103 -0.11 48
IV.SAP2.EHZ. 2021-09-29T19:16:24.99 0.6 undecidable manual S 42 29.5482 105 0.51 44
IV.MML1.EHZ. 2021-09-29T19:16:24.37 0.3 undecidable manual S 328 28.0497 105 0.38 68
IV.MF5.EHZ. 2021-09-29T19:16:24.28 0.6 undecidable manual S 68 26.6511 106 0.77 40
IV.MTRA.EHZ. 2021-09-29T19:16:23.30 0.3 undecidable manual S 129 25.1526 107 0.27 70
IV.ATCC.EHZ. 2021-09-29T19:16:23.73 0.3 undecidable manual P 307 52.503 50 -0.09 69
IV.ARRO.EHZ. 2021-09-29T19:16:23.19 0.6 undecidable manual P 222 47.619 50 0.12 46
IV.PF6.EHZ. 2021-09-29T19:16:23.07 0.6 undecidable manual S 7 26.6511 106 -0.46 45
IV.OFFI.HHZ. 2021-09-29T19:16:23.11 0.6 undecidable manual P 85 43.3233 50 0.7 40
IV.MOMA.HHZ. 2021-09-29T19:16:23.34 0.3 undecidable manual P 258 48.7179 50 0.1 70
IV.EL6.EHZ. 2021-09-29T19:16:22.59 0.3 undecidable manual P 355 47.9187 50 -0.53 64
IV.RM33.EHZ. 2021-09-29T19:16:22.20 0.3 undecidable manual P 174 43.5231 50 -0.24 68
IV.TERO.HHZ. 2021-09-29T19:16:22.83 0.3 undecidable manual P 130 47.7189 50 -0.25 68
IV.MNTT.EHZ. 2021-09-29T19:16:22.22 0.3 undecidable manual P 63 40.1265 50 0.31 68
IV.GUMA.HHZ. 2021-09-29T19:16:22.63 0.3 undecidable manual S 39 23.3544 108 0.22 71
IV.SNTG.HHZ. 2021-09-29T19:16:22.19 0.3 undecidable manual P 336 43.1235 50 -0.2 69
IV.CESI.HHZ. 2021-09-29T19:16:22.78 0.3 undecidable manual S 300 23.4543 108 0.32 70
IV.ASSB.HHZ. 2021-09-29T19:16:22.13 0.3 undecidable manual P 292 43.3233 50 -0.28 68
IV.CSP1.EHZ. 2021-09-29T19:16:21.70 0.6 undecidable manual S 11 21.7671 109 -0.2 48
IT.MTCL.HGZ. 2021-09-29T19:16:20.17 0.6 undecidable manual S 310 16.4724 115 -0.02 50
IV.SMA1.EHZ. 2021-09-29T19:16:20.46 0.3 undecidable manual P 154 33.2445 103 -0.25 70
IV.LNSS.HHZ. 2021-09-29T19:16:20.74 0.1 undecidable manual P 196 34.1436 103 -0.15 94
IV.GAVE.EHZ. 2021-09-29T19:16:20.42 0.1 undecidable manual P 223 31.2465 104 0.09 96
IV.SAP2.EHZ. 2021-09-29T19:16:20.80 0.3 undecidable manual P 42 29.5482 105 0.79 59
IV.FDMO.HHZ. 2021-09-29T19:16:20.37 0.3 undecidable manual S 340 16.2726 115 0.25 72
IV.PF6.EHZ. 2021-09-29T19:16:19.12 0.3 undecidable manual P 7 26.6511 106 -0.33 69
IV.MF5.EHZ. 2021-09-29T19:16:19.53 0.1 undecidable manual P 68 26.6511 106 0.09 97
IV.MTRA.EHZ. 2021-09-29T19:16:19.14 0.1 undecidable manual P 129 25.1526 107 -0.02 99
IV.MMO1.EHZ. 2021-09-29T19:16:19.12 0.6 undecidable manual S 90 13.9749 119 -0.3 47
IV.MML1.EHZ. 2021-09-29T19:16:19.52 0.1 undecidable manual P 328 28.0497 105 -0.19 95
IV.GUMA.HHZ. 2021-09-29T19:16:18.86 0.1 positive manual P 39 23.3544 108 0.05 98
IV.CESI.HHZ. 2021-09-29T19:16:18.97 0.1 undecidable manual P 300 23.4543 108 0.13 97
IV.NRCA.HHZ. 2021-09-29T19:16:18.15 0.6 undecidable manual S 205 7.9809 134 0.42 47
IV.CSP1.EHZ. 2021-09-29T19:16:18.21 0.1 undecidable manual P 11 21.7671 109 -0.3 94
IV.FDMO.HHZ. 2021-09-29T19:16:17.45 0.1 undecidable manual P 340 16.2726 115 -0.03 100
IT.MTCL.HGZ. 2021-09-29T19:16:17.63 0.1 undecidable manual P 310 16.4724 115 0.11 98
IV.MMO1.EHZ. 2021-09-29T19:16:16.97 0.1 positive manual P 90 13.9749 119 -0.11 99
IV.NRCA.HHZ. 2021-09-29T19:16:16.44 0.1 positive manual P 205 7.9809 134 0.33 95
IV.MC2.EHZ. 2021-09-29T19:16:15.76 0.3 undecidable manual S 63 3.0969 158 -1.01 56
IV.MC2.EHZ. 2021-09-29T19:16:15.18 0.1 undecidable manual P 63 3.0969 158 -0.37 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.0 0.001555 0.34 AML other m 2021-09-29T19:16:18.53
IV.NRCA.HHN. ML:2.0 0.0017800000000000001 0.34 AML other m 2021-09-29T19:16:18.53
IV.NRCA.HNE. ML:2.1 0.00226 0.4 AML other m 2021-09-29T19:16:18.36
IV.NRCA.HHE. ML:2.1 0.0023599999999999997 0.4 AML other m 2021-09-29T19:16:18.36
IV.FDMO.HHN. ML:1.5 0.000317 0.62 AML other m 2021-09-29T19:16:21.27
IV.FDMO.HHE. ML:1.4 0.0002265 0.7 AML other m 2021-09-29T19:16:22.23
IV.GUMA.HHE. ML:1.8 0.00044899999999999996 1.26 AML other m 2021-09-29T19:16:22.93
IV.CESI.HHN. ML:1.6 0.000263 0.24 AML other m 2021-09-29T19:16:23.18
IV.MTRA.EHN. ML:1.6 0.000258 0.42 AML other m 2021-09-29T19:16:24.64
IV.CESI.HHE. ML:1.5 0.000192 0.48 AML other m 2021-09-29T19:16:24.75
IV.MML1.EHE. ML:1.2 0.00008325 1.4 AML other m 2021-09-29T19:16:24.17
IV.MTRA.EHE. ML:1.6 0.000243 1.7 AML other m 2021-09-29T19:16:25.88
IV.MML1.EHN. ML:1.4 0.00011899999999999999 0.72 AML other m 2021-09-29T19:16:25.02
IV.MF5.EHE. ML:1.4 0.0001389 0.24 AML other m 2021-09-29T19:16:25.91
IV.MF5.EHN. ML:1.4 0.0001356 0.52 AML other m 2021-09-29T19:16:26.26
IV.GUMA.HHN. ML:1.6 0.000244 0.96 AML other m 2021-09-29T19:16:26.80
IV.GAVE.EHN. ML:1.6 0.0002045 0.44 AML other m 2021-09-29T19:16:27.57
IV.LNSS.HHE. ML:1.5 0.00013450000000000002 0.86 AML other m 2021-09-29T19:16:27.40
IV.LNSS.HHN. ML:1.5 0.0001305 0.28 AML other m 2021-09-29T19:16:27.55
IV.GAVE.EHE. ML:1.7 0.000219 0.8 AML other m 2021-09-29T19:16:27.41
IV.ASSB.HHE. ML:1.3 0.00006195 0.98 AML other m 2021-09-29T19:16:29.32
IV.SMA1.EHE. ML:1.3 0.00007960000000000001 0.44 AML other m 2021-09-29T19:16:29.70
IV.MNTT.EHE. ML:1.9 0.00028000000000000003 0.08 AML other m 2021-09-29T19:16:30.42
IV.SNTG.HHN. ML:1.0 0.0000309 1.2 AML other m 2021-09-29T19:16:30.04
IV.MNTT.EHN. ML:1.8 0.000193 0.34 AML other m 2021-09-29T19:16:30.62
IV.TERO.HHN. ML:1.5 0.0000899 1.48 AML other m 2021-09-29T19:16:30.83
IV.SNTG.HHE. ML:1.0 0.000034 0.2 AML other m 2021-09-29T19:16:31.27
IV.RM33.EHN. ML:1.2 0.00004775 0.44 AML other m 2021-09-29T19:16:31.59
IV.MOMA.HHE. ML:1.5 0.0000891 0.24 AML other m 2021-09-29T19:16:31.59
IV.RM33.EHE. ML:1.2 0.00004875 0.48 AML other m 2021-09-29T19:16:31.59
IV.EL6.EHN. ML:1.4 0.00007085 0.26 AML other m 2021-09-29T19:16:31.74
IV.EL6.EHE. ML:1.4 0.00007355 1.64 AML other m 2021-09-29T19:16:31.08
IV.SMA1.EHN. ML:1.2 0.00007435 0.92 AML other m 2021-09-29T19:16:32.08
IV.MOMA.HHN. ML:1.2 0.000040249999999999996 1.2 AML other m 2021-09-29T19:16:32.98
IV.ASSB.HHN. ML:1.3 0.00006214999999999999 0.74 AML other m 2021-09-29T19:16:33.09
IV.ATCC.EHE. ML:1.4 0.000053150000000000004 0.42 AML other m 2021-09-29T19:16:33.34
IV.TERO.HHE. ML:1.6 0.0001266 1.2 AML other m 2021-09-29T19:16:35.68
IV.ATCC.EHN. ML:1.2 0.0000414 0.42 AML other m 2021-09-29T19:16:40.35
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