Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 08-11-2021 and time 19:59:45 (Italy) in region 2 km N Montegallo (AP)

A magnitude ML 2.1 earthquake occured in region: 2 km N Montegallo (AP), on

  • 08-11-2021 18:59:45 (UTC)
  • 08-11-2021 19:59:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8620, 13.3370 at 24 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
Montegallo AP 2 523 523
Montemonaco AP 4 604 1127
Montefortino FM 9 1178 2305
Arquata del Tronto AP 10 1178 3483
Palmiano AP 11 196 3679
Roccafluvione AP 11 2010 5689
Acquasanta Terme AP 12 2916 8605
Comunanza AP 12 3166 11771
Venarotta AP 13 2066 13837
Amandola FM 13 3629 17466
Castelsantangelo sul Nera MC 15 281 17747
Force AP 17 1354 19101
Bolognola MC 17 142 19243
Montefalcone Appennino FM 17 424 19667
Smerillo FM 18 365 20032
Ussita MC 19 444 20476
Valle Castellana TE 19 977 21453
Sarnano MC 20 3264 24717
Ascoli Piceno AP 20 49407 74124
Accumoli RI 20 667 74791

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km NW of Teramo (54892 inhabitants)
53 Km E of Foligno (57155 inhabitants)
57 Km N of L'Aquila (69753 inhabitants)
66 Km NE of Terni (111501 inhabitants)
77 Km NW of Montesilvano (53738 inhabitants)
82 Km E of Perugia (166134 inhabitants)
84 Km NW of Pescara (121014 inhabitants)
85 Km S of Ancona (100861 inhabitants)
89 Km NW of Chieti (51815 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 2.1 2021-11-08
18:59:45		 42.8623 13.337 25 2022-03-30
13:04:16		 Bollettino Sismico Italiano INGV 97597491
Reviewed
Rev100 		ML 2.1 2021-11-08
18:59:45		 42.8618 13.3393 24 2021-11-08
19:08:49		 Sala Sismica INGV-Roma 97346211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-08 18:59:45 ± 0.09
Latitude 42.8623 ± 0.0027
Longitude 13.3370 ± 0.0049
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97597491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 389
Semi-minor axis of confidence ellipse (meter) 66
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 255
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 46
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.71046
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 97346211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-08 19:08:49

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 97597491
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-14 10:24:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IT.PLTA.HNZ. 2021-11-08T19:00:10.61 3.0 undecidable manual Pn 0.48 0
IV.MML1.EHZ. 2021-11-08T19:00:00.00 0.1 undecidable manual S 313 40.7259 114 0.12 92
IV.GAVE.EHZ. 2021-11-08T19:00:00.39 0.6 undecidable manual S 243 40.7259 114 0.5 42
IV.T0110.HHZ. 2021-11-08T18:59:59.68 0.3 undecidable manual P 153 78.8655 101 0.12 64
IV.CESI.HHZ. 2021-11-08T18:59:59.64 0.1 undecidable manual S 294 38.5281 116 0.28 89
IV.LNSS.HHZ. 2021-11-08T18:59:59.59 0.3 undecidable manual S 220 37.629 116 0.46 64
IV.TERO.HHZ. 2021-11-08T18:59:58.46 0.6 undecidable manual S 141 34.3434 119 0.09 47
IT.MTCL.HGZ. 2021-11-08T18:59:57.61 0.6 undecidable manual S 298 31.0467 122 0 48
IV.PF6.EHN. 2021-11-08T18:59:57.92 0.6 undecidable manual S 339 32.6451 120 -0.06 47
IV.MOMA.HHZ. 2021-11-08T18:59:57.38 0.1 undecidable manual P 264 62.6928 105 0.25 86
IV.SAP2.EHZ. 2021-11-08T18:59:57.07 0.3 undecidable manual S 11 26.4513 127 0.47 66
IV.SMA1.EHZ. 2021-11-08T18:59:56.26 0.1 undecidable manual S 180 25.752 128 -0.18 94
IV.CING.HHZ. 2021-11-08T18:59:56.17 0.1 undecidable manual P 349 58.0974 106 -0.28 86
IV.FDMO.HHZ. 2021-11-08T18:59:56.64 0.1 undecidable manual S 314 28.0497 125 -0.29 91
IV.CSP1.EHZ. 2021-11-08T18:59:56.90 0.1 undecidable manual S 337 27.6501 125 0.05 96
IV.GUMA.HHZ. 2021-11-08T18:59:56.04 0.3 undecidable manual S 360 22.2555 132 0.31 69
IV.FEMA.HNE. 2021-11-08T18:59:56.74 0.6 undecidable manual S 295 25.8519 128 0.28 46
IV.EL6.EHZ. 2021-11-08T18:59:55.97 0.3 undecidable manual P 340 55.2003 107 -0.05 68
IV.MF5.EHZ. 2021-11-08T18:59:55.07 0.3 undecidable manual S 36 17.1717 141 0.28 70
IV.NRCA.HNZ. 2021-11-08T18:59:54.83 0.1 undecidable manual S 260 18.3705 138 -0.18 95
IV.MC2.EHZ. 2021-11-08T18:59:54.32 0.1 undecidable manual S 294 13.1757 148 0.14 96
IV.GIGS.HJZ. 2021-11-08T18:59:54.91 0.3 undecidable manual P 157 49.3173 110 -0.25 66
IV.CESI.HHZ. 2021-11-08T18:59:53.56 0.1 undecidable manual P 294 38.5281 116 -0.06 94
IV.LNSS.HHZ. 2021-11-08T18:59:53.58 0.1 undecidable manual P 220 37.629 116 0.09 93
IV.OFFI.HHZ. 2021-11-08T18:59:53.29 0.3 undecidable manual P 74 29.4483 123 0.88 56
IV.MML1.EHZ. 2021-11-08T18:59:53.74 0.1 undecidable manual P 313 40.7259 114 -0.18 91
IV.CAMP.HHE. 2021-11-08T18:59:53.14 0.1 undecidable manual P 171 36.741 117 -0.23 91
IV.MTRA.EHZ. 2021-11-08T18:59:53.90 0.6 undecidable manual S 157 12.6762 149 -0.21 47
IV.GAVE.EHZ. 2021-11-08T18:59:53.97 0.1 undecidable manual P 243 40.7259 114 0.04 93
7F.SIB1.EHZ. 2021-11-08T18:59:53.26 0.6 undecidable manual S 303 6.4935 163 -0.19 48
IV.MMO1.EHZ. 2021-11-08T18:59:52.87 0.3 undecidable manual S 349 4.1958 169 -0.43 69
IV.MNTP.HNZ. 2021-11-08T18:59:52.85 0.3 undecidable manual P 19 32.3454 121 0.07 71
IV.SAP2.EHZ. 2021-11-08T18:59:52.06 0.1 undecidable manual P 11 26.4513 127 0.03 96
IV.TERO.HHZ. 2021-11-08T18:59:52.99 0.1 undecidable manual P 141 34.3434 119 -0.06 94
IT.MTCL.HGZ. 2021-11-08T18:59:52.48 0.1 undecidable manual P 298 31.0467 122 -0.14 93
IV.FDMO.HHZ. 2021-11-08T18:59:52.03 0.1 undecidable manual P 314 28.0497 125 -0.19 93
IV.PF6.EHN. 2021-11-08T18:59:52.62 0.1 undecidable manual P 339 32.6451 120 -0.21 92
IV.CSP1.EHZ. 2021-11-08T18:59:52.07 0.1 undecidable manual P 337 27.6501 125 -0.1 94
IV.FEMA.HNE. 2021-11-08T18:59:51.89 0.1 undecidable manual P 295 25.8519 128 -0.06 96
IV.MF5.EHZ. 2021-11-08T18:59:51.11 0.1 undecidable manual P 36 17.1717 141 0.13 96
IV.SMA1.EHZ. 2021-11-08T18:59:51.94 0.1 undecidable manual P 180 25.752 128 0 97
IV.NRCA.HNZ. 2021-11-08T18:59:51.00 0.1 undecidable manual P 260 18.3705 138 -0.11 96
IV.GUMA.HHZ. 2021-11-08T18:59:51.60 0.1 undecidable manual P 360 22.2555 132 0.08 96
7F.SIB1.EHZ. 2021-11-08T18:59:50.21 0.1 undecidable manual P 303 6.4935 163 0.01 100
IV.MC2.EHZ. 2021-11-08T18:59:50.68 0.1 undecidable manual P 294 13.1757 148 0.05 98
IV.MTRA.EHZ. 2021-11-08T18:59:50.48 0.1 undecidable manual P 157 12.6762 149 -0.11 97
IV.MMO1.EHZ. 2021-11-08T18:59:49.90 0.1 undecidable manual P 349 4.1958 169 -0.22 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MMO1.EHN. ML:2.0 0.00066 1.7 AML other m 2021-11-08T18:59:52.12
IV.MMO1.EHE. ML:1.8 0.0004525 0.3 AML other m 2021-11-08T18:59:53.26
IV.MTRA.EHE. ML:2.1 0.00066 0.22 AML other m 2021-11-08T18:59:54.12
IV.MTRA.HNE. ML:2.0 0.0006414999999999999 0.22 AML other m 2021-11-08T18:59:54.12
IV.MTRA.HNN. ML:1.9 0.0004395 0.22 AML other m 2021-11-08T18:59:54.53
IV.MTRA.EHN. ML:1.9 0.0004425 0.22 AML other m 2021-11-08T18:59:54.42
IV.MC2.EHE. ML:2.6 0.002045 0.16 AML other m 2021-11-08T18:59:54.45
IV.MC2.EHN. ML:2.5 0.001875 1.28 AML other m 2021-11-08T18:59:54.70
IV.NRCA.HNN. ML:2.3 0.001145 0.9 AML other m 2021-11-08T18:59:55.01
IV.NRCA.HHN. ML:2.4 0.0012200000000000002 0.9 AML other m 2021-11-08T18:59:55.01
IV.NRCA.HHE. ML:2.4 0.00122 0.2 AML other m 2021-11-08T18:59:55.03
IV.NRCA.HNE. ML:2.3 0.0011005000000000001 0.22 AML other m 2021-11-08T18:59:55.03
IV.GUMA.HNE. ML:1.9 0.0003485 0.42 AML other m 2021-11-08T18:59:56.30
IV.SMA1.EHE. ML:1.9 0.0003025 0.2 AML other m 2021-11-08T18:59:56.76
IV.SMA1.EHN. ML:1.9 0.00036050000000000003 1.1 AML other m 2021-11-08T18:59:56.74
IV.FDMO.HHN. ML:2.6 0.0014449999999999999 1.7 AML other m 2021-11-08T18:59:56.12
IV.GUMA.HNN. ML:2.0 0.0004575 0.52 AML other m 2021-11-08T18:59:56.98
IV.GUMA.HHN. ML:2.0 0.0005164999999999999 0.52 AML other m 2021-11-08T18:59:56.72
IV.FDMO.HHE. ML:2.5 0.001265 1.9 AML other m 2021-11-08T18:59:57.02
IV.CSP1.EHE. ML:2.5 0.0013050000000000002 0.2 AML other m 2021-11-08T18:59:57.24
IV.CSP1.EHN. ML:2.5 0.001245 0.48 AML other m 2021-11-08T18:59:57.28
IV.TERO.HHN. ML:1.8 0.00023449999999999998 0.32 AML other m 2021-11-08T18:59:59.36
IV.GUMA.HHE. ML:2.0 0.00043149999999999997 0.34 AML other m 2021-11-08T18:59:59.87
IV.LNSS.HHN. ML:2.2 0.00045999999999999996 0.54 AML other m 2021-11-08T18:59:59.89
IV.LNSS.HNN. ML:2.2 0.00044750000000000004 0.18 AML other m 2021-11-08T18:59:59.89
IV.CESI.HHE. ML:1.9 0.0002605 1.7 AML other m 2021-11-08T18:59:59.07
IV.TERO.HHE. ML:1.7 0.00017449999999999999 1.02 AML other m 2021-11-08T18:59:59.92
IV.CESI.HHN. ML:2.1 0.0003665 1.68 AML other m 2021-11-08T18:59:59.08
IV.MML1.EHE. ML:1.8 0.000158 0.56 AML other m 2021-11-08T19:00:00.27
IV.MML1.EHN. ML:2.1 0.00035499999999999996 0.16 AML other m 2021-11-08T19:00:00.39
IV.LNSS.HHE. ML:2.3 0.0006105 0.16 AML other m 2021-11-08T19:00:00.47
IV.LNSS.HNE. ML:2.2 0.0005735 0.16 AML other m 2021-11-08T19:00:00.47
IV.GAVE.EHN. ML:2.0 0.000288 0.38 AML other m 2021-11-08T19:00:01.79
IV.GAVE.EHE. ML:1.9 0.0002375 0.24 AML other m 2021-11-08T19:00:02.77
IV.EL6.EHE. ML:1.9 0.000179 0.42 AML other m 2021-11-08T19:00:06.60
IV.EL6.EHN. ML:1.8 0.00013800000000000002 0.54 AML other m 2021-11-08T19:00:09.43
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