Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 12-09-2021 and time 11:34:04 (UTC) in region 4 km E Bolognola (MC)

A magnitude ML 2.0 earthquake occured in region: 4 km E Bolognola (MC), on

  • 12-09-2021 11:34:04 (UTC)
  • 12-09-2021 13:34:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9850, 13.2700 at 25 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
Bolognola MC 4 142 142
Sarnano MC 6 3264 3406
Amandola FM 7 3629 7035
Montefortino FM 8 1178 8213
Acquacanina MC 9 121 8334
Montemonaco AP 11 604 8938
Fiastra MC 11 559 9497
Gualdo MC 11 815 10312
Ussita MC 12 444 10756
Comunanza AP 12 3166 13922
Castelsantangelo sul Nera MC 14 281 14203
Cessapalombo MC 14 512 14715
San Ginesio MC 14 3498 18213
Smerillo FM 15 365 18578
Monte San Martino MC 15 765 19343
Penna San Giovanni MC 15 1108 20451
Montefalcone Appennino FM 16 424 20875
Fiordimonte MC 16 202 21077
Visso MC 16 1107 22184
Camporotondo di Fiastrone MC 16 563 22747
Sant'Angelo in Pontano MC 16 1436 24183
Montegallo AP 17 523 24706
Pievebovigliana MC 17 866 25572
Caldarola MC 18 1823 27395
Palmiano AP 18 196 27591
Force AP 18 1354 28945
Pieve Torina MC 19 1458 30403
Santa Vittoria in Matenano FM 19 1330 31733
Ripe San Ginesio MC 19 852 32585

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km E of Foligno (57155 inhabitants)
51 Km NW of Teramo (54892 inhabitants)
69 Km NE of Terni (111501 inhabitants)
71 Km N of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
73 Km S of Ancona (100861 inhabitants)
89 Km NW of Montesilvano (53738 inhabitants)
96 Km NW of Pescara (121014 inhabitants)
98 Km S of Fano (60888 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 2.0 2021-09-12
11:34:04		 42.9852 13.2695 25 2022-03-30
13:04:06		 Bollettino Sismico Italiano INGV 95659691
Reviewed
Rev100 		ML 2.0 2021-09-12
11:34:04		 42.9882 13.2767 26 2021-09-12
11:40:37		 Sala Sismica INGV-Roma 95344341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-12 11:34:04 ± 0.05
Latitude 42.9852 ± 0.0018
Longitude 13.2695 ± 0.0037
Depth (km) 25 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95659691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 247
Semi-minor axis of confidence ellipse (meter) 140
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 232
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 62
Number of defining phases 58
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.80130
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 95659691
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-17 11:28:32

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 95344341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-12 11:40:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.OT11.EHZ. 2021-09-12T11:35:05.90 3.0 undecidable manual Sn 1.72 0
IV.RIBO.EHZ.01 2021-09-12T11:34:53.19 3.0 undecidable manual Sn 1.08 0
IV.TST01.HHZ. 2021-09-12T11:34:33.87 3.0 undecidable manual Pg 4.57 0
IV.NARO.HHZ. 2021-09-12T11:34:31.46 0.6 undecidable manual S 322 88.9443 101 0.11 43
IV.SFI.EHZ. 2021-09-12T11:34:28.22 3.0 undecidable manual Pn 0.31 0
IV.RM33.EHZ. 2021-09-12T11:34:22.40 0.6 undecidable manual S 185 53.0025 109 0.34 44
IV.ATCC.EHZ. 2021-09-12T11:34:22.53 0.3 undecidable manual S 294 55.5999 108 -0.18 67
IV.TERO.HHZ. 2021-09-12T11:34:21.03 0.3 undecidable manual S 146 48.5181 111 0.09 69
IV.ASSB.HHZ. 2021-09-12T11:34:21.28 0.3 undecidable manual S 278 49.9167 110 0 70
IV.LNSS.HHZ. 2021-09-12T11:34:20.71 0.3 undecidable manual S 204 46.3203 112 0.32 67
IV.GAVE.EHZ. 2021-09-12T11:34:20.30 0.3 undecidable manual S 223 44.622 113 0.34 67
IV.NARO.HHZ. 2021-09-12T11:34:20.15 0.3 undecidable manual P 322 88.9443 101 0.02 65
IV.CING.HHZ. 2021-09-12T11:34:19.78 0.3 undecidable manual S 352 43.7229 114 0.04 70
IV.SNTG.HHZ. 2021-09-12T11:34:19.02 0.1 undecidable manual S 318 40.0266 116 0.16 92
IV.EL6.EHZ. 2021-09-12T11:34:19.35 0.3 undecidable manual S 340 40.5261 116 0.38 66
IV.SMA1.EHZ. 2021-09-12T11:34:18.79 0.3 undecidable manual S 172 39.7269 116 0.02 72
IV.T1299.HNN. 2021-09-12T11:34:18.60 0.3 undecidable manual S 178 38.9277 117 0.01 72
IV.MURB.HHZ. 2021-09-12T11:34:17.19 0.3 undecidable manual P 297 67.6767 104 0.26 65
IV.SEF1.HNZ. 2021-09-12T11:34:17.04 0.6 undecidable manual S 305 31.6461 123 0.14 47
IV.CESI.HHZ. 2021-09-12T11:34:16.70 0.3 undecidable manual S 274 29.6481 125 0.24 70
IV.MML1.EHZ. 2021-09-12T11:34:16.05 0.3 undecidable manual S 301 28.0497 126 -0.05 72
IV.ATCC.EHZ. 2021-09-12T11:34:15.20 0.1 undecidable manual P 294 55.5999 108 0.06 92
IV.MTRA.EHZ. 2021-09-12T11:34:15.77 0.3 undecidable manual S 158 27.3504 127 -0.19 71
IV.ARRO.EHZ. 2021-09-12T11:34:15.96 0.3 undecidable manual P 222 60.8946 106 0.04 69
IV.ASSB.HHZ. 2021-09-12T11:34:14.29 0.1 positive manual P 278 49.9167 110 -0.03 93
IV.FEMA.HNE. 2021-09-12T11:34:14.43 0.6 undecidable manual S 262 17.9709 140 0.28 47
IT.MTCL.HGZ. 2021-09-12T11:34:14.72 0.3 undecidable manual S 273 21.9669 134 -0.14 71
IV.TERO.HHZ. 2021-09-12T11:34:14.03 0.3 undecidable manual P 146 48.5181 111 -0.08 69
IV.RM33.EHZ. 2021-09-12T11:34:14.68 0.1 undecidable manual P 185 53.0025 109 -0.08 91
IV.NRCA.HNZ. 2021-09-12T11:34:14.65 0.3 undecidable manual S 217 21.0678 136 -0.04 73
IV.GUMA.HHZ. 2021-09-12T11:34:13.13 0.3 undecidable manual S 32 10.0788 156 0.1 73
IV.GAVE.EHZ. 2021-09-12T11:34:13.72 0.1 positive manual P 223 44.622 113 0.17 92
IV.PF6.EHN. 2021-09-12T11:34:13.73 0.3 undecidable manual S 340 17.9709 140 -0.42 69
IV.CSP1.EHZ. 2021-09-12T11:34:13.15 0.3 undecidable manual S 336 12.9759 150 -0.23 72
IV.SAP2.EHZ. 2021-09-12T11:34:13.98 0.3 undecidable manual S 40 16.2726 144 0.12 72
IV.LNSS.HHZ. 2021-09-12T11:34:13.69 0.3 undecidable manual P 204 46.3203 112 -0.11 69
IV.CING.HHZ. 2021-09-12T11:34:13.28 0.1 negative manual P 352 43.7229 114 -0.15 93
IV.FDMO.HHZ. 2021-09-12T11:34:13.54 0.3 undecidable manual S 291 15.873 144 -0.26 71
IV.MF5.EHZ. 2021-09-12T11:34:13.96 0.3 undecidable manual S 89 15.4734 145 0.23 70
IV.MC2.EHZ. 2021-09-12T11:34:13.22 0.3 undecidable manual S 219 10.4784 155 0.15 73
IV.T1299.HNN. 2021-09-12T11:34:12.78 0.1 undecidable manual P 178 38.9277 117 0.02 95
IV.SMA1.EHZ. 2021-09-12T11:34:12.69 0.1 undecidable manual P 172 39.7269 116 -0.17 92
IV.OFFI.HHZ. 2021-09-12T11:34:12.12 0.3 undecidable manual P 99 34.2435 120 0 72
IV.MMO1.EHZ. 2021-09-12T11:34:12.81 0.3 undecidable manual S 154 10.5783 155 -0.27 72
IV.SNTG.HHZ. 2021-09-12T11:34:12.85 0.1 undecidable manual P 318 40.0266 116 -0.06 94
IV.EL6.EHZ. 2021-09-12T11:34:12.86 0.1 undecidable manual P 340 40.5261 116 -0.12 93
IV.CESI.HHZ. 2021-09-12T11:34:11.61 0.1 positive manual P 274 29.6481 125 0.08 96
IV.SEF1.HNZ. 2021-09-12T11:34:11.76 0.6 undecidable manual P 305 31.6461 123 -0.02 48
IV.MML1.EHZ. 2021-09-12T11:34:11.33 0.1 undecidable manual P 301 28.0497 126 0.01 97
IV.MNTT.EHZ. 2021-09-12T11:34:11.58 0.3 undecidable manual P 72 27.75 127 0.28 68
IV.MTRA.EHZ. 2021-09-12T11:34:11.06 0.1 undecidable manual P 158 27.3504 127 -0.18 94
IV.MF5.EHZ. 2021-09-12T11:34:10.08 0.1 negative manual P 89 15.4734 145 0.12 96
IT.MTCL.HGZ. 2021-09-12T11:34:10.50 0.1 undecidable manual P 273 21.9669 134 -0.11 96
IV.NRCA.HNZ. 2021-09-12T11:34:10.46 0.1 undecidable manual P 217 21.0678 136 -0.05 97
IV.FEMA.HNE. 2021-09-12T11:34:10.22 0.1 undecidable manual P 262 17.9709 140 0.02 99
IV.SAP2.EHZ. 2021-09-12T11:34:10.00 0.3 undecidable manual P 40 16.2726 144 -0.03 74
IV.MMO1.EHZ. 2021-09-12T11:34:09.42 0.1 undecidable manual P 154 10.5783 155 -0.16 98
IV.GUMA.HHZ. 2021-09-12T11:34:09.54 0.1 negative manual P 32 10.0788 156 -0.01 100
IV.PF6.EHN. 2021-09-12T11:34:09.93 0.1 negative manual P 340 17.9709 140 -0.27 94
IV.FDMO.HHZ. 2021-09-12T11:34:09.90 0.1 positive manual P 291 15.873 144 -0.09 98
IV.CSP1.EHZ. 2021-09-12T11:34:09.63 0.1 negative manual P 336 12.9759 150 -0.12 98
IV.MC2.EHZ. 2021-09-12T11:34:09.68 0.1 positive manual P 219 10.4784 155 0.11 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUMA.HNN. ML:2.4 0.00151 0.28 AML other m 2021-09-12T11:34:13.40
IV.GUMA.HHN. ML:2.2 0.000893 0.28 AML other m 2021-09-12T11:34:13.42
IV.CSP1.EHN. ML:2.6 0.002225 0.42 AML other m 2021-09-12T11:34:13.33
IV.GUMA.HNE. ML:2.2 0.000994 0.28 AML other m 2021-09-12T11:34:13.38
IV.GUMA.HHE. ML:2.5 0.001885 0.28 AML other m 2021-09-12T11:34:13.40
IV.CSP1.EHE. ML:2.4 0.00131 0.28 AML other m 2021-09-12T11:34:13.28
IV.FDMO.HHE. ML:2.2 0.000815 0.22 AML other m 2021-09-12T11:34:13.78
IV.FDMO.HHN. ML:2.3 0.0009570000000000001 1.68 AML other m 2021-09-12T11:34:13.85
IV.MF5.EHN. ML:2.0 0.0004885 0.4 AML other m 2021-09-12T11:34:14.30
IV.MF5.EHE. ML:1.7 0.0002465 0.84 AML other m 2021-09-12T11:34:14.38
IV.NRCA.HHN. ML:2.3 0.000937 1.4 AML other m 2021-09-12T11:34:15.72
IV.NRCA.HHE. ML:2.5 0.0015350000000000001 0.42 AML other m 2021-09-12T11:34:15.29
IV.SAP2.EHN. ML:2.5 0.0016699999999999998 0.16 AML other m 2021-09-12T11:34:15.78
IV.MTRA.EHN. ML:2.0 0.000343 1.32 AML other m 2021-09-12T11:34:16.30
IV.MML1.EHE. ML:2.1 0.0004895 0.44 AML other m 2021-09-12T11:34:16.57
IV.MML1.HNE. ML:2.1 0.00048650000000000006 0.8 AML other m 2021-09-12T11:34:16.57
IV.MTRA.EHE. ML:2.1 0.0005024999999999999 0.26 AML other m 2021-09-12T11:34:16.60
IV.MML1.HNN. ML:2.1 0.00047500000000000005 0.22 AML other m 2021-09-12T11:34:16.95
IV.MML1.EHN. ML:2.1 0.000458 0.24 AML other m 2021-09-12T11:34:16.96
IV.CESI.HHN. ML:2.0 0.0003715 0.28 AML other m 2021-09-12T11:34:17.23
IV.CESI.HHE. ML:2.0 0.00034100000000000005 0.34 AML other m 2021-09-12T11:34:17.25
IV.SNTG.HHE. ML:1.8 0.00017999999999999998 0.34 AML other m 2021-09-12T11:34:19.49
IV.SMA1.EHN. ML:1.9 0.000251 0.5 AML other m 2021-09-12T11:34:19.07
IV.SMA1.EHE. ML:2.0 0.0002675 0.38 AML other m 2021-09-12T11:34:19.42
IV.SNTG.HHN. ML:1.8 0.000163 0.22 AML other m 2021-09-12T11:34:19.76
IV.SAP2.EHE. ML:1.7 0.0002515 0.26 AML other m 2021-09-12T11:34:19.79
IV.CING.HHE. ML:1.4 0.00007585 1.18 AML other m 2021-09-12T11:34:21.22
IV.LNSS.HHN. ML:2.0 0.00026900000000000003 1.12 AML other m 2021-09-12T11:34:21.79
IV.CING.HHN. ML:1.4 0.0000742 0.34 AML other m 2021-09-12T11:34:21.09
IV.ASSB.HHE. ML:1.8 0.00013800000000000002 1.7 AML other m 2021-09-12T11:34:22.08
IV.GAVE.EHN. ML:2.1 0.0003135 0.7 AML other m 2021-09-12T11:34:22.46
IV.ASSB.HHN. ML:1.8 0.00015900000000000002 0.14 AML other m 2021-09-12T11:34:22.30
IV.LNSS.HHE. ML:2.0 0.000252 0.68 AML other m 2021-09-12T11:34:22.14
IV.RM33.EHN. ML:2.0 0.000188 0.56 AML other m 2021-09-12T11:34:23.01
IV.GAVE.EHE. ML:2.2 0.00038 0.22 AML other m 2021-09-12T11:34:23.36
IV.ATCC.EHN. ML:1.9 0.000161 0.14 AML other m 2021-09-12T11:34:23.90
IV.ATCC.EHE. ML:2.0 0.000185 1.1 AML other m 2021-09-12T11:34:24.37
IV.RM33.EHE. ML:2.2 0.0003125 0.66 AML other m 2021-09-12T11:34:24.34
IV.ARRO.EHE. ML:1.7 0.000088 0.18 AML other m 2021-09-12T11:34:25.50
IV.ARRO.EHN. ML:1.6 0.0000737 0.18 AML other m 2021-09-12T11:34:26.12
IV.MURB.HHE. ML:2.3 0.00033850000000000004 0.32 AML other m 2021-09-12T11:34:27.90
IV.MURB.HHN. ML:2.3 0.0003145 1.64 AML other m 2021-09-12T11:34:27.92
IV.NARO.HHE. ML:1.4 0.00003165 1.14 AML other m 2021-09-12T11:34:33.96
IV.NARO.HHN. ML:1.4 0.00002255 0.54 AML other m 2021-09-12T11:34:35.27
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