Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 27-08-2021 and time 16:11:11 (Italy) in region 2 km NE Castelsantangelo sul Nera (MC)

A magnitude ML 2.4 earthquake occured in region: 2 km NE Castelsantangelo sul Nera (MC), on

  • 27-08-2021 14:11:11 (UTC)
  • 27-08-2021 16:11:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9050, 13.1710 at 13 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 2 281 281
Ussita MC 5 444 725
Visso MC 7 1107 1832
Preci PG 11 724 2556
Bolognola MC 11 142 2698
Montemonaco AP 13 604 3302
Norcia PG 14 4957 8259
Acquacanina MC 14 121 8380
Montefortino FM 15 1178 9558
Fiastra MC 15 559 10117
Montegallo AP 15 523 10640
Fiordimonte MC 16 202 10842
Monte Cavallo MC 17 145 10987
Amandola FM 17 3629 14616
Arquata del Tronto AP 18 1178 15794
Sarnano MC 18 3264 19058
Pieve Torina MC 18 1458 20516
Pievebovigliana MC 19 866 21382
Sellano PG 20 1079 22461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
51 Km NW of Teramo (54892 inhabitants)
57 Km NE of Terni (111501 inhabitants)
64 Km N of L'Aquila (69753 inhabitants)
67 Km E of Perugia (166134 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
98 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
Bulletin
Rev1000 		ML 2.4 2021-08-27
14:11:11		 42.9047 13.1707 13 2021-12-29
11:12:31		 Bollettino Sismico Italiano INGV 95700001
Reviewed
Rev100 		ML 2.4 2021-08-27
14:11:11		 42.9045 13.1767 11 2021-08-27
14:25:16		 Sala Sismica INGV-Roma 94710401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-27 14:11:11 ± 0.04
Latitude 42.9047 ± 0.0018
Longitude 13.1707 ± 0.0037
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95700001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 280
Semi-minor axis of confidence ellipse (meter) 10
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 271
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 38
Number of associated phases, regardless of their use for origin computation 73
Number of defining phases 71
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.80849
Number of stations at which the event was observed 43
Number of stations from which data was used for origin computation 41
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 66
Type of magnitude ML
Reference to an origin 95700001
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-23 11:24:41

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 66
Type of magnitude ML
Reference to an origin 94710401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-27 14:25:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IT.RMVT.HGZ. 2021-08-27T14:11:46.71 3.0 undecidable manual S 0.06 0
IV.VCEL.EHZ. 2021-08-27T14:11:35.80 1.0 undecidable manual S 136 78.6657 92 0.86 17
IV.FRON.EHZ. 2021-08-27T14:11:35.20 1.0 undecidable manual S 332 76.9674 92 0.72 19
IV.ARVD.HHZ. 2021-08-27T14:11:33.10 1.0 undecidable manual S 344 68.376 92 0.9 17
IV.CERT.HHZ. 2021-08-27T14:11:31.76 3.0 positive manual P 2.36 0
IV.CESX.HHZ. 2021-08-27T14:11:30.00 1.0 undecidable manual S 236 57.7977 93 0.62 20
IV.ATCC.EHZ. 2021-08-27T14:11:29.00 1.0 undecidable manual S 306 53.1024 93 0.88 18
IV.CING.HHZ. 2021-08-27T14:11:28.20 0.6 undecidable manual S 2 52.3032 93 0.29 44
IV.EL6.EHZ. 2021-08-27T14:11:27.20 1.0 undecidable manual S 353 47.4192 93 0.58 21
IV.ARRO.EHZ. 2021-08-27T14:11:27.30 1.0 undecidable manual S 223 48.9177 93 0.29 22
IV.MOMA.HHZ. 2021-08-27T14:11:27.93 0.6 undecidable manual S 257 50.1165 93 0.6 41
IV.MPAG.EHZ. 2021-08-27T14:11:26.52 0.3 undecidable manual P 338 86.9463 92 0.21 63
IV.TERO.HHZ. 2021-08-27T14:11:26.50 0.6 undecidable manual S 131 47.1195 93 -0.04 47
IV.COR1.EHZ. 2021-08-27T14:11:26.27 0.3 undecidable manual P 350 81.8514 92 0.75 54
IV.ASSB.HHZ. 2021-08-27T14:11:26.20 0.6 undecidable manual S 290 44.3223 94 0.42 44
IV.RM33.EHZ. 2021-08-27T14:11:26.00 0.3 undecidable manual S 175 44.0226 94 0.29 67
IV.T0110.HHZ. 2021-08-27T14:11:26.70 0.3 undecidable manual P 146 89.7435 92 -0.04 65
IV.CAMP.HHE. 2021-08-27T14:11:25.90 0.3 undecidable manual S 155 45.3213 94 -0.15 69
IV.AOI.HHZ. 2021-08-27T14:11:25.35 0.3 undecidable manual P 26 79.6647 92 0.17 64
IV.VCEL.EHZ. 2021-08-27T14:11:24.99 0.6 undecidable manual P 136 78.6657 92 -0.04 44
IV.FRON.EHZ. 2021-08-27T14:11:24.57 0.3 undecidable manual P 332 76.9674 92 -0.19 64
IV.MNTP.HNZ. 2021-08-27T14:11:24.40 1.0 undecidable manual S 43 35.4423 95 0.99 17
IV.MURB.HHZ. 2021-08-27T14:11:23.36 1.0 undecidable manual P 307 65.6898 92 0.32 21
IV.LNSS.HHZ. 2021-08-27T14:11:23.80 0.3 undecidable manual S 198 35.1426 95 0.46 66
IV.ARVD.HHZ. 2021-08-27T14:11:23.10 0.1 undecidable manual P 344 68.376 92 -0.34 84
IV.SMA1.EHZ. 2021-08-27T14:11:22.80 0.3 undecidable manual S 156 33.2445 96 -0.04 72
IV.SAP2.EHZ. 2021-08-27T14:11:22.00 0.3 undecidable manual S 41 28.2495 98 0.49 65
IV.GAVE.EHZ. 2021-08-27T14:11:22.80 0.3 undecidable manual S 224 32.5452 96 0.14 71
IV.ATCC.EHZ. 2021-08-27T14:11:21.02 0.3 undecidable manual P 306 53.1024 93 -0.07 68
IV.MML1.EHZ. 2021-08-27T14:11:21.40 0.3 undecidable manual S 325 28.2495 98 -0.11 71
IV.MF5.EHZ. 2021-08-27T14:11:21.20 0.3 undecidable manual S 68 25.2525 99 0.49 65
IV.GIGS.HHN. 2021-08-27T14:11:21.69 0.3 undecidable manual P 147 59.8956 92 -0.44 63
IV.CESX.HHZ. 2021-08-27T14:11:21.74 0.1 undecidable manual P 236 57.7977 93 -0.08 90
IV.ARRO.EHZ. 2021-08-27T14:11:20.29 0.6 undecidable manual P 223 48.9177 93 -0.16 45
IV.MTRA.HNZ. 2021-08-27T14:11:20.30 0.3 undecidable manual S 132 24.6531 100 -0.26 70
IV.CING.HHZ. 2021-08-27T14:11:20.64 0.1 undecidable manual P 2 52.3032 93 -0.32 87
IV.GUMA.HHZ. 2021-08-27T14:11:20.10 0.3 undecidable manual S 37 22.0668 102 0.22 70
IV.MOMA.HHZ. 2021-08-27T14:11:20.69 0.3 undecidable manual P 257 50.1165 93 0.06 70
IV.CESI.HHZ. 2021-08-27T14:11:20.50 0.3 undecidable manual S 297 24.2535 100 0.03 73
IV.EL6.EHZ. 2021-08-27T14:11:19.97 0.1 positive manual P 353 47.4192 93 -0.25 89
IV.MNTT.EHZ. 2021-08-27T14:11:19.39 0.6 undecidable manual P 63 38.628 95 0.52 42
IV.CAMP.HHE. 2021-08-27T14:11:19.60 0.1 positive manual P 155 45.3213 94 -0.29 89
IV.RM33.EHZ. 2021-08-27T14:11:19.57 0.3 undecidable manual P 175 44.0226 94 -0.13 69
IV.TERO.HHZ. 2021-08-27T14:11:19.94 0.1 undecidable manual P 131 47.1195 93 -0.23 90
IV.ASSB.HHZ. 2021-08-27T14:11:19.97 0.3 undecidable manual P 290 44.3223 94 0.23 68
IV.CSP1.EHZ. 2021-08-27T14:11:19.20 0.3 undecidable manual S 8 20.9679 103 -0.4 68
IV.LNSS.HHZ. 2021-08-27T14:11:18.21 0.1 undecidable manual P 198 35.1426 95 -0.12 94
IV.FDMO.HHZ. 2021-08-27T14:11:18.00 0.3 undecidable manual S 335 16.0728 112 -0.37 68
IT.MTCL.HGZ. 2021-08-27T14:11:18.40 0.3 undecidable manual S 305 17.0718 110 -0.2 70
IV.MNTP.HNZ. 2021-08-27T14:11:18.61 0.1 undecidable manual P 43 35.4423 95 0.24 91
IV.SAP2.EHZ. 2021-08-27T14:11:17.39 0.1 positive manual P 41 28.2495 98 0.12 95
IV.MDAR.HNN. 2021-08-27T14:11:17.56 0.3 undecidable manual P 356 32.0457 96 -0.29 68
IV.GAVE.EHZ. 2021-08-27T14:11:17.95 0.1 positive manual P 224 32.5452 96 0.01 96
IV.MML1.EHZ. 2021-08-27T14:11:17.11 0.1 positive manual P 325 28.2495 98 -0.16 94
IV.T1299.HNN. 2021-08-27T14:11:17.72 1.0 undecidable manual P 163 31.3464 96 -0.03 24
IV.MMO1.EHZ. 2021-08-27T14:11:17.30 0.3 undecidable manual S 93 12.6762 122 -0.25 72
IV.SMA1.EHZ. 2021-08-27T14:11:17.85 0.1 undecidable manual P 156 33.2445 96 -0.19 93
IV.SEF1.HNN. 2021-08-27T14:11:17.48 0.3 undecidable manual P 326 32.3454 96 -0.43 66
IV.FEMA.HNZ. 2021-08-27T14:11:17.40 0.1 undecidable manual S 303 11.6772 126 0.06 100
IV.MF5.EHZ. 2021-08-27T14:11:17.00 0.1 undecidable manual P 68 25.2525 99 0.19 94
IV.NRCA.HNZ. 2021-08-27T14:11:16.70 0.1 undecidable manual S 210 9.0798 135 -0.11 97
IV.GUMA.HHZ. 2021-08-27T14:11:16.36 0.1 positive manual P 37 22.0668 102 0.03 98
IV.MC2.EHZ. 2021-08-27T14:11:16.00 0.3 undecidable manual S 63 1.6983 171 0.1 76
IV.CESI.HHZ. 2021-08-27T14:11:16.64 0.1 positive manual P 297 24.2535 100 -0.03 97
IV.CSP1.EHZ. 2021-08-27T14:11:16.00 0.1 positive manual P 8 20.9679 103 -0.17 95
IV.MTRA.HNZ. 2021-08-27T14:11:16.46 0.1 undecidable manual P 132 24.6531 100 -0.26 93
IV.PF6.EHN. 2021-08-27T14:11:16.57 0.1 undecidable manual P 4 25.9518 99 -0.35 91
IV.FEMA.HNZ. 2021-08-27T14:11:15.01 0.1 undecidable manual P 303 11.6772 126 0.15 98
IV.FDMO.HHZ. 2021-08-27T14:11:15.31 0.1 positive manual P 335 16.0728 112 -0.15 96
IT.MTCL.HGZ. 2021-08-27T14:11:15.52 0.1 undecidable manual P 305 17.0718 110 -0.07 97
IV.NRCA.HNZ. 2021-08-27T14:11:14.64 0.1 negative manual P 210 9.0798 135 0.08 100
IV.MMO1.EHZ. 2021-08-27T14:11:14.90 0.1 negative manual P 93 12.6762 122 -0.09 99
IV.MC2.EHZ. 2021-08-27T14:11:14.23 0.1 negative manual P 63 1.6983 171 0.2 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:3.2 0.01925 0.94 AML other m 2021-08-27T14:11:16.86
IV.NRCA.HNN. ML:3.2 0.0174 0.94 AML other m 2021-08-27T14:11:16.86
IV.NRCA.HNE. ML:3.0 0.010765 1.1 AML other m 2021-08-27T14:11:17.94
IV.NRCA.HHE. ML:3.0 0.011415 1.1 AML other m 2021-08-27T14:11:17.94
IV.FDMO.HHE. ML:2.4 0.0019399999999999999 0.82 AML other m 2021-08-27T14:11:18.13
IV.FDMO.HHN. ML:2.6 0.003255 0.32 AML other m 2021-08-27T14:11:18.46
IV.CSP1.EHN. ML:2.7 0.0032591824999999995 0.7616 AML other m 2021-08-27T14:11:20.33
IV.GUMA.HHE. ML:2.9 0.005825 0.26 AML other m 2021-08-27T14:11:20.48
IV.GUMA.HNN. ML:2.9 0.004574999999999999 0.48 AML other m 2021-08-27T14:11:20.48
IV.GUMA.HNE. ML:2.8 0.004165 0.32 AML other m 2021-08-27T14:11:20.52
IV.CSP1.EHE. ML:2.6 0.0026 0.4 AML other m 2021-08-27T14:11:20.72
IV.GUMA.HHN. ML:2.7 0.0034349999999999997 1.64 AML other m 2021-08-27T14:11:20.97
IV.CESI.HHN. ML:2.3 0.0011425 1.54 AML other m 2021-08-27T14:11:20.97
IV.CESI.HHE. ML:2.2 0.000919 1.6 AML other m 2021-08-27T14:11:20.97
IV.MTRA.EHE. ML:2.6 0.002085 0.26 AML other m 2021-08-27T14:11:21.38
IV.MTRA.HNE. ML:2.6 0.00209 0.26 AML other m 2021-08-27T14:11:21.38
IV.MTRA.HNN. ML:2.4 0.00156 1.08 AML other m 2021-08-27T14:11:21.37
IV.MTRA.EHN. ML:2.4 0.0015400000000000001 1.08 AML other m 2021-08-27T14:11:21.37
IV.MF5.EHN. ML:2.3 0.001155 0.12 AML other m 2021-08-27T14:11:21.77
IV.MML1.HNE. ML:2.1 0.000668 0.3 AML other m 2021-08-27T14:11:21.81
IV.MML1.EHE. ML:2.2 0.0006985 0.28 AML other m 2021-08-27T14:11:21.81
IV.MF5.EHE. ML:2.2 0.000896 1.42 AML other m 2021-08-27T14:11:22.73
IV.SAP2.EHN. ML:3.0 0.0056913165 0.1984 AML other m 2021-08-27T14:11:22.45
IV.MML1.EHN. ML:2.4 0.00125 0.68 AML other m 2021-08-27T14:11:22.72
IV.MML1.HNN. ML:2.4 0.00127 0.68 AML other m 2021-08-27T14:11:22.72
IV.SAP2.EHE. ML:2.3 0.00102319 0.4032 AML other m 2021-08-27T14:11:22.57
IV.GAVE.EHE. ML:2.6 0.0015249999999999999 0.96 AML other m 2021-08-27T14:11:23.85
IV.SMA1.EHN. ML:2.4 0.001073 0.62 AML other m 2021-08-27T14:11:23.13
IV.SMA1.EHE. ML:2.2 0.0006942485 0.4224 AML other m 2021-08-27T14:11:23.47
IV.GAVE.HNN. ML:2.0 0.0004455 0.26 AML other m 2021-08-27T14:11:23.37
IV.GAVE.EHN. ML:2.5 0.0013700000000000001 0.24 AML other m 2021-08-27T14:11:23.38
IV.GAVE.HNE. ML:2.5 0.00143 0.48 AML other m 2021-08-27T14:11:23.85
IV.LNSS.HHN. ML:2.2 0.0006585974500000001 0.16 AML other m 2021-08-27T14:11:24.45
IV.LNSS.HHE. ML:2.2 0.000669 0.68 AML other m 2021-08-27T14:11:25.56
IV.RM33.EHN. ML:2.5 0.0009395 0.26 AML other m 2021-08-27T14:11:26.68
IV.RM33.HNN. ML:2.5 0.0009895000000000001 0.26 AML other m 2021-08-27T14:11:26.68
IV.RM33.HNE. ML:2.5 0.0009315 0.48 AML other m 2021-08-27T14:11:26.51
IV.RM33.EHE. ML:2.4 0.0007989999999999999 0.48 AML other m 2021-08-27T14:11:26.51
IV.ASSB.HHN. ML:2.1 0.0003725 0.92 AML other m 2021-08-27T14:11:27.52
IV.TERO.HHE. ML:2.3 0.0006374999999999999 1.04 AML other m 2021-08-27T14:11:27.71
IV.TERO.HNN. ML:2.4 0.0007059999999999999 0.84 AML other m 2021-08-27T14:11:27.39
IV.TERO.HHN. ML:2.3 0.0006355 0.84 AML other m 2021-08-27T14:11:27.39
IV.TERO.HNE. ML:2.3 0.0006234999999999999 0.6 AML other m 2021-08-27T14:11:27.41
IV.MNTT.EHN. ML:2.7 0.0017549999999999998 0.66 AML other m 2021-08-27T14:11:27.51
IV.ASSB.HHE. ML:2.1 0.00039850000000000004 0.24 AML other m 2021-08-27T14:11:27.74
IV.EL6.EHE. ML:2.0 0.0002530483 0.1792 AML other m 2021-08-27T14:11:27.81
IV.EL6.EHN. ML:2.1 0.0003280858 0.224 AML other m 2021-08-27T14:11:28.23
IV.MNTT.EHE. ML:2.7 0.0016 0.52 AML other m 2021-08-27T14:11:28.36
IV.MOMA.HHN. ML:2.0 0.00027550000000000003 0.52 AML other m 2021-08-27T14:11:28.98
IV.MOMA.HNE. ML:2.0 0.000287 0.42 AML other m 2021-08-27T14:11:28.72
IV.MOMA.HNN. ML:2.0 0.00026250000000000004 0.52 AML other m 2021-08-27T14:11:28.98
IV.MOMA.HHE. ML:2.1 0.00029749999999999997 1.1 AML other m 2021-08-27T14:11:29.09
IV.ATCC.EHE. ML:2.1 0.0002705 0.64 AML other m 2021-08-27T14:11:29.25
IV.CING.HHN. ML:2.1 0.0003025 0.12 AML other m 2021-08-27T14:11:29.27
IV.CESX.HHN. ML:1.9 0.0001704127 0.5056 AML other m 2021-08-27T14:11:30.35
IV.ATCC.EHN. ML:2.0 0.000248 1.6 AML other m 2021-08-27T14:11:30.17
IV.CING.HHE. ML:2.0 0.000262 1.18 AML other m 2021-08-27T14:11:30.30
IV.CESX.HHE. ML:1.9 0.000185 0.38 AML other m 2021-08-27T14:11:30.35
IV.ARVD.HHN. ML:1.8 0.0001107 0.2 AML other m 2021-08-27T14:11:33.76
IV.ARVD.HHE. ML:2.0 0.000168 0.18 AML other m 2021-08-27T14:11:33.87
IV.MURB.HNE. ML:2.8 0.00127 1.68 AML other m 2021-08-27T14:11:35.97
IV.MURB.HHE. ML:2.8 0.0011899999999999999 1.68 AML other m 2021-08-27T14:11:35.97
IV.MURB.HHN. ML:2.8 0.001135 1.7 AML other m 2021-08-27T14:11:36.13
IV.MURB.HNN. ML:2.7 0.000953 1.68 AML other m 2021-08-27T14:11:36.97
IV.FRON.EHE. ML:2.0 0.0001315 0.44 AML other m 2021-08-27T14:11:37.94
IV.FRON.EHN. ML:2.0 0.000155 1.08 AML other m 2021-08-27T14:11:38.40
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
Waveforms Seismic signals in miniseed + resp format Download