Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 21-11-2021 and time 11:52:37 (UTC) in region 2 km E Fiordimonte (MC)

A magnitude ML 1.8 earthquake occured in region: 2 km E Fiordimonte (MC), on

  • 21-11-2021 11:52:37 (UTC)
  • 21-11-2021 12:52:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0350, 13.1200 at 9 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
Fiordimonte MC 2 202 202
Fiastra MC 3 559 761
Pievebovigliana MC 4 866 1627
Acquacanina MC 5 121 1748
Pieve Torina MC 6 1458 3206
Muccia MC 8 915 4121
Bolognola MC 10 142 4263
Ussita MC 10 444 4707
Monte Cavallo MC 11 145 4852
Visso MC 12 1107 5959
Camerino MC 12 6974 12933
Cessapalombo MC 14 512 13445
Serravalle di Chienti MC 14 1070 14515
Caldarola MC 15 1823 16338
Sarnano MC 15 3264 19602
Castelsantangelo sul Nera MC 16 281 19883
Camporotondo di Fiastrone MC 16 563 20446
Serrapetrona MC 17 966 21412
Belforte del Chienti MC 17 1886 23298
San Ginesio MC 18 3498 26796
Gualdo MC 18 815 27611
Sefro MC 19 422 28033
Preci PG 19 724 28757
Pioraco MC 19 1134 29891

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
60 Km E of Perugia (166134 inhabitants)
63 Km NW of Teramo (54892 inhabitants)
65 Km NE of Terni (111501 inhabitants)
72 Km SW of Ancona (100861 inhabitants)
79 Km N of L'Aquila (69753 inhabitants)
90 Km S of Fano (60888 inhabitants)
99 Km S of Pesaro (94582 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 1.8 2021-11-21
11:52:37		 43.0353 13.1195 9 2022-03-30
13:04:28		 Bollettino Sismico Italiano INGV 99630441
Reviewed
Rev100 		ML 1.7 2021-11-21
11:52:37		 43.0362 13.119 9 2021-11-21
11:59:21		 Sala Sismica INGV-Roma 97655051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-21 11:52:37 ± 0.03
Latitude 43.0353 ± 0.0018
Longitude 13.1195 ± 0.0025
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99630441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 238
Semi-minor axis of confidence ellipse (meter) 172
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 76
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 29
Number of associated phases, regardless of their use for origin computation 74
Number of defining phases 73
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) 0.69608
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 41
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 14
Type of magnitude ML
Reference to an origin 99630441
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-11 16:05:37

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 97655051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-21 11:59:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.COR1.EHZ. 2021-11-21T11:52:58.64 3.0 undecidable manual S -0.09 0
IV.CESX.HHE. 2021-11-21T11:52:57.20 0.6 undecidable manual S 223 64.1913 50 0.15 45
IV.CAMP.HHE. 2021-11-21T11:52:56.00 0.3 undecidable manual S 157 60.1953 50 0.01 70
IV.FRON.EHZ. 2021-11-21T11:52:56.90 0.3 undecidable manual S 329 62.2932 50 0.37 65
IV.TERO.HHZ. 2021-11-21T11:52:56.50 0.3 undecidable manual S 139 60.3951 50 0.47 63
IV.ATSC.EHE. 2021-11-21T11:52:55.16 0.3 undecidable manual S 321 55.5 50 0.43 65
IV.RM33.EHZ. 2021-11-21T11:52:55.70 0.6 undecidable manual S 172 58.8966 50 0.06 46
IV.MURB.HHZ. 2021-11-21T11:52:54.88 0.6 undecidable manual S 298 54.4011 50 0.46 43
IV.ARVD.HHE. 2021-11-21T11:52:54.60 0.3 undecidable manual S 344 53.3022 50 0.46 64
IT.GNU.HGE. 2021-11-21T11:52:54.26 0.6 undecidable manual S 240 51.5151 50 0.61 41
IV.SSFR.HHZ. 2021-11-21T11:52:54.00 0.3 undecidable manual S 329 52.2033 50 0.17 69
IV.MOMA.HHZ. 2021-11-21T11:52:53.80 0.6 undecidable manual S 240 51.5151 50 0.14 46
IV.LNSS.HHZ. 2021-11-21T11:52:52.80 0.6 undecidable manual S 188 48.4182 50 -0.03 47
IV.SMA1.EHZ. 2021-11-21T11:52:52.70 0.6 undecidable manual S 159 48.2184 50 -0.08 47
IV.ATCC.EHZ. 2021-11-21T11:52:51.30 0.6 undecidable manual S 293 42.2244 50 0.11 47
IV.FOSV.HNE. 2021-11-21T11:52:50.60 0.3 undecidable manual S 315 40.8258 50 -0.22 69
IV.GAVE.EHZ. 2021-11-21T11:52:50.90 0.6 undecidable manual S 206 42.2244 50 -0.29 45
IV.NARO.HHZ. 2021-11-21T11:52:50.44 0.6 undecidable manual P 326 77.2671 50 -0.17 44
IV.MPAG.EHZ. 2021-11-21T11:52:49.77 0.1 undecidable manual P 336 71.9724 50 -0.03 91
IV.CING.HHZ. 2021-11-21T11:52:49.80 0.6 undecidable manual S 9 38.2284 50 -0.32 45
IV.ASSB.HHZ. 2021-11-21T11:52:49.60 0.6 undecidable manual S 271 37.3293 50 -0.28 46
IV.ATBU.EHZ. 2021-11-21T11:52:49.47 0.3 undecidable manual P 317 67.1772 50 0.41 63
IV.AOI.HHE. 2021-11-21T11:52:49.81 0.6 undecidable manual P 34 69.1752 50 0.45 42
IV.FRON.EHZ. 2021-11-21T11:52:48.03 0.3 undecidable manual P 329 62.2932 50 -0.26 66
IV.EL6.EHE. 2021-11-21T11:52:48.20 0.3 undecidable manual S 357 32.6451 50 -0.43 67
IV.CESX.HHE. 2021-11-21T11:52:48.26 0.6 undecidable manual P 223 64.1913 50 -0.34 43
IV.CAMP.HHE. 2021-11-21T11:52:47.61 0.3 undecidable manual P 157 60.1953 50 -0.38 65
IV.TERO.HHZ. 2021-11-21T11:52:47.84 0.1 undecidable manual P 139 60.3951 50 -0.17 90
IV.RM33.EHZ. 2021-11-21T11:52:47.57 0.6 positive manual P 172 58.8966 50 -0.21 45
IV.ATSC.EHE. 2021-11-21T11:52:47.04 0.6 undecidable manual P 321 55.5 50 -0.22 45
IV.MURB.HHZ. 2021-11-21T11:52:47.10 0.3 undecidable manual P 298 54.4011 50 0.02 70
IV.MF5.EHZ. 2021-11-21T11:52:47.72 0.6 undecidable manual S 101 28.0497 108 0.4 45
IT.GNU.HGE. 2021-11-21T11:52:47.05 0.1 undecidable manual P 240 51.5151 50 0.41 87
IV.SSFR.HHZ. 2021-11-21T11:52:46.52 0.3 undecidable manual P 329 52.2033 50 -0.22 68
IV.OFFI.HHE. 2021-11-21T11:52:46.77 1.0 undecidable manual P 103 47.3193 50 0.78 19
IV.MOMA.HHZ. 2021-11-21T11:52:46.45 0.6 undecidable manual P 240 51.5151 50 -0.19 46
IV.SNTG.HHZ. 2021-11-21T11:52:46.87 0.6 undecidable manual S -0.51 44
IV.ARVD.HHE. 2021-11-21T11:52:46.76 0.1 undecidable manual P 344 53.3022 50 -0.16 92
IV.NRCA.HHZ. 2021-11-21T11:52:45.10 0.6 undecidable manual S 181 22.3554 112 -0.36 46
IV.LNSS.HHZ. 2021-11-21T11:52:45.87 1.0 positive manual P 188 48.4182 50 -0.29 22
IV.GAVE.EHZ. 2021-11-21T11:52:45.12 0.6 negative manual P 206 42.2244 50 -0.09 47
IV.MMO1.EHN. 2021-11-21T11:52:45.20 0.3 undecidable manual S 132 22.5552 112 -0.33 70
IV.SMA1.EHZ. 2021-11-21T11:52:45.80 0.3 positive manual P 159 48.2184 50 -0.33 67
IV.ATCC.EHZ. 2021-11-21T11:52:45.08 0.6 positive manual P 293 42.2244 50 -0.14 47
IV.CING.HHZ. 2021-11-21T11:52:44.36 0.6 undecidable manual P 9 38.2284 50 -0.24 46
IV.MTRA.EHE. 2021-11-21T11:52:44.22 0.6 undecidable manual P 144 38.2284 50 -0.38 45
IV.ASSB.HHZ. 2021-11-21T11:52:44.17 0.1 positive manual P 271 37.3293 50 -0.29 92
IV.FOSV.HNE. 2021-11-21T11:52:44.70 0.3 undecidable manual P 315 40.8258 50 -0.3 68
IV.CESI.HHZ. 2021-11-21T11:52:44.10 0.6 undecidable manual S 259 17.7711 118 0.1 49
IV.GUMA.HNN. 2021-11-21T11:52:44.40 0.6 undecidable manual S 80 17.7711 118 0.4 46
IV.MF5.EHZ. 2021-11-21T11:52:43.21 0.1 positive manual P 101 28.0497 108 0.23 94
IV.EL6.EHE. 2021-11-21T11:52:43.36 0.3 undecidable manual P 357 32.6451 50 -0.37 68
IV.MC2.EHZ. 2021-11-21T11:52:43.20 0.6 undecidable manual S 158 14.874 122 0.07 50
IV.MNTP.HNZ. 2021-11-21T11:52:43.67 0.3 undecidable manual P 68 30.5472 50 0.27 70
IV.MML1.EHZ. 2021-11-21T11:52:43.00 0.6 undecidable manual S 306 14.7741 122 -0.1 50
IV.MDAR.HNN. 2021-11-21T11:52:43.70 0.3 undecidable manual S 6 17.5713 118 -0.24 72
IV.PF6.EHN. 2021-11-21T11:52:42.30 0.3 undecidable manual S 28 12.876 126 -0.26 72
IV.SAP2.EHE. 2021-11-21T11:52:42.42 1.0 undecidable manual P 73 23.6541 111 0.28 24
IT.MTCL.HGZ. 2021-11-21T11:52:42.00 0.6 undecidable manual S 245 10.7781 131 0.02 51
IV.CESI.HHZ. 2021-11-21T11:52:41.18 0.1 undecidable manual P 259 17.7711 118 0.12 98
IV.MMO1.EHN. 2021-11-21T11:52:41.77 0.3 undecidable manual P 132 22.5552 112 -0.17 72
IV.CSP1.EHZ. 2021-11-21T11:52:41.60 0.6 undecidable manual S 48 9.2796 135 -0.01 51
IV.FEMA.HNZ. 2021-11-21T11:52:41.90 0.6 undecidable manual S 215 9.879 133 0.14 50
IV.GUMA.HNN. 2021-11-21T11:52:41.37 0.3 undecidable manual P 80 17.7711 118 0.31 71
IV.NRCA.HHZ. 2021-11-21T11:52:41.76 0.1 negative manual P 181 22.3554 112 -0.14 97
IT.MTCL.HGZ. 2021-11-21T11:52:40.08 0.1 positive manual P 245 10.7781 131 0.18 98
IV.MC2.EHZ. 2021-11-21T11:52:40.67 0.1 undecidable manual P 158 14.874 122 0.11 99
IV.FDMO.HHZ. 2021-11-21T11:52:40.10 0.3 undecidable manual S 273 2.5974 164 -0.29 73
IV.FEMA.HNZ. 2021-11-21T11:52:40.04 0.1 undecidable manual P 215 9.879 133 0.27 96
IV.PF6.EHN. 2021-11-21T11:52:40.27 0.3 undecidable manual P 28 12.876 126 0.04 76
IV.MML1.EHZ. 2021-11-21T11:52:40.63 0.1 negative manual P 306 14.7741 122 0.08 100
IV.MDAR.HNN. 2021-11-21T11:52:40.99 0.3 undecidable manual P 6 17.5713 118 -0.04 75
IV.CSP1.EHZ. 2021-11-21T11:52:39.79 0.1 positive manual P 48 9.2796 135 0.1 100
IV.FDMO.HHZ. 2021-11-21T11:52:38.98 0.3 undecidable manual P 273 2.5974 164 0 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNN. ML:1.8 0.00095 0.88 AML other m 2021-11-21T11:52:42.48
IV.FEMA.HNE. ML:1.9 0.00103 0.22 AML other m 2021-11-21T11:52:42.61
IV.MC2.EHE. ML:1.8 0.0005660000000000001 1.68 AML other m 2021-11-21T11:52:45.00
IV.MC2.EHN. ML:1.8 0.000624 0.92 AML other m 2021-11-21T11:52:45.49
IV.NRCA.HHE. ML:1.9 0.000521 0.68 AML other m 2021-11-21T11:52:46.10
IV.NRCA.HHN. ML:1.8 0.00041049999999999995 1.1 AML other m 2021-11-21T11:52:46.05
IV.ATCC.EHE. ML:1.9 0.0002735 0.14 AML other m 2021-11-21T11:52:51.66
IV.ATCC.EHN. ML:1.7 0.00016049999999999997 0.92 AML other m 2021-11-21T11:52:52.69
IV.GAVE.EHN. ML:1.8 0.00021150000000000002 0.16 AML other m 2021-11-21T11:52:52.96
IV.LNSS.HHE. ML:1.7 0.000142 0.14 AML other m 2021-11-21T11:52:53.08
IV.GAVE.EHE. ML:1.9 0.00027850000000000005 0.18 AML other m 2021-11-21T11:52:53.42
IV.LNSS.HHN. ML:1.6 0.00010695 1 AML other m 2021-11-21T11:52:54.13
IV.MOMA.HHE. ML:1.7 0.000121 0.62 AML other m 2021-11-21T11:52:54.58
IV.MOMA.HHN. ML:1.6 0.00010075000000000001 0.18 AML other m 2021-11-21T11:52:55.38
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