Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 08-07-2021 and time 21:17:16 (UTC) in region 3 km S Fiordimonte (MC)

A magnitude ML 1.8 earthquake occured in region: 3 km S Fiordimonte (MC), on

  • 08-07-2021 21:17:16 (UTC)
  • 08-07-2021 23:17:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0120, 13.0990 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 3 202 202
Fiastra MC 5 559 761
Pieve Torina MC 5 1458 2219
Pievebovigliana MC 6 866 3085
Acquacanina MC 7 121 3206
Ussita MC 8 444 3650
Monte Cavallo MC 8 145 3795
Visso MC 9 1107 4902
Muccia MC 9 915 5817
Bolognola MC 11 142 5959
Castelsantangelo sul Nera MC 14 281 6240
Serravalle di Chienti MC 14 1070 7310
Camerino MC 14 6974 14284
Preci PG 16 724 15008
Sarnano MC 17 3264 18272
Cessapalombo MC 17 512 18784
Caldarola MC 18 1823 20607
Camporotondo di Fiastrone MC 19 563 21170
Sefro MC 19 422 21592
Sellano PG 20 1079 22671
Serrapetrona MC 20 966 23637

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
59 Km E of Perugia (166134 inhabitants)
62 Km NE of Terni (111501 inhabitants)
63 Km NW of Teramo (54892 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
93 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 1.8 2021-07-08
21:17:16		 43.012 13.0992 9 2021-12-29
11:12:12		 Bollettino Sismico Italiano INGV 92990961
Reviewed
Rev100 		ML 1.8 2021-07-08
21:17:16		 43.014 13.0988 9 2021-07-08
21:23:22		 Sala Sismica INGV-Roma 92448521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-08 21:17:16 ± 0.03
Latitude 43.0120 ± 0.0018
Longitude 13.0992 ± 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 92990961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 214
Semi-minor axis of confidence ellipse (meter) 139
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 59
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
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 66
Number of defining phases 66
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) 0.02608
Epicentral distance of station farthest from the epicenter (degree) 0.66550
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 35
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 92990961
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-20 14:48:47

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 92448521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-08 21:23:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESX.HHZ. 2021-07-08T21:17:36.07 0.6 undecidable manual S 223 61.1943 50 0.12 45
IV.TERO.HHN. 2021-07-08T21:17:35.92 0.6 undecidable manual S 136 59.5959 50 0.4 42
IV.ARVD.HHZ. 2021-07-08T21:17:35.06 0.6 undecidable manual S 347 55.4001 50 0.66 39
IV.CAMP.HHE. 2021-07-08T21:17:35.41 0.6 undecidable manual S 154 58.497 50 0.16 44
IV.RM33.EHZ. 2021-07-08T21:17:35.09 0.6 undecidable manual S 170 56.5989 50 0.37 43
IV.ARRO.EHZ. 2021-07-08T21:17:34.80 0.6 undecidable manual S 210 55.2003 50 0.45 42
IV.SSFR.HHZ. 2021-07-08T21:17:34.28 0.6 undecidable manual S 332 53.6019 50 0.36 43
IV.MOMA.HHZ. 2021-07-08T21:17:33.08 0.6 undecidable manual S 242 48.8178 50 0.43 43
IV.SMA1.EHZ. 2021-07-08T21:17:32.31 0.3 undecidable manual S 156 46.5201 50 0.29 66
IV.ATCC.EHZ. 2021-07-08T21:17:31.14 0.6 undecidable manual S 297 41.8248 50 0.35 44
IV.LNSS.HHZ. 2021-07-08T21:17:31.69 0.6 undecidable manual S 186 45.621 50 -0.11 46
IV.T1299.HNN. 2021-07-08T21:17:31.87 0.6 undecidable manual S 160 44.5221 50 0.38 44
IV.FOSV.EHZ. 2021-07-08T21:17:30.89 0.6 undecidable manual S 319 41.625 50 0.16 46
IV.MPAG.EHZ. 2021-07-08T21:17:30.13 0.1 undecidable manual P 338 73.7706 50 0.42 82
IV.GAVE.EHZ. 2021-07-08T21:17:30.30 0.3 undecidable manual S 205 39.2274 50 0.21 68
IV.CING.HHZ. 2021-07-08T21:17:30.64 0.3 undecidable manual S 11 41.0256 50 0.06 70
IV.EL6.EHZ. 2021-07-08T21:17:29.04 0.6 undecidable manual S 0 35.2425 50 0.03 48
IV.MTRA.EHZ. 2021-07-08T21:17:29.54 0.3 undecidable manual S 139 37.2294 50 -0.02 71
IV.PIEI.HHZ. 2021-07-08T21:17:29.59 0.6 undecidable manual P 322 73.8705 50 -0.13 43
IV.ASSB.HHZ. 2021-07-08T21:17:29.12 0.3 undecidable manual S 276 35.8419 50 -0.08 71
IV.CESX.HHZ. 2021-07-08T21:17:27.25 0.6 undecidable manual P 223 61.1943 50 -0.53 41
IV.MF5.EHZ. 2021-07-08T21:17:27.21 0.6 undecidable manual S 95 29.3484 106 -0.03 48
IV.TERO.HHN. 2021-07-08T21:17:27.21 0.3 undecidable manual P 136 59.5959 50 -0.32 64
IV.RM33.EHZ. 2021-07-08T21:17:26.79 0.3 undecidable manual P 170 56.5989 50 -0.28 65
IV.SAP2.EHE. 2021-07-08T21:17:26.34 0.6 undecidable manual S 69 26.0517 108 0.2 47
IV.ARRO.EHZ. 2021-07-08T21:17:26.74 0.1 undecidable manual P 210 55.2003 50 -0.11 90
IV.SSFR.HHZ. 2021-07-08T21:17:26.48 0.1 undecidable manual P 332 53.6019 50 -0.13 90
IV.ARVD.HHZ. 2021-07-08T21:17:26.83 0.3 undecidable manual P 347 55.4001 50 -0.06 69
IV.CAMP.HHE. 2021-07-08T21:17:26.95 0.3 undecidable manual P 154 58.497 50 -0.42 63
IV.MURB.HHZ. 2021-07-08T21:17:26.72 0.1 undecidable manual P 301 54.2013 50 0.01 92
IV.MMO1.EHZ. 2021-07-08T21:17:25.03 0.3 undecidable manual S 124 22.3554 111 0.11 72
IV.LNSS.HHZ. 2021-07-08T21:17:25.26 0.1 undecidable manual P 186 45.621 50 -0.13 92
IV.T1299.HNN. 2021-07-08T21:17:25.10 0.1 undecidable manual P 160 44.5221 50 -0.1 92
IV.MOMA.HHZ. 2021-07-08T21:17:25.82 0.3 undecidable manual P 242 48.8178 50 -0.05 69
IV.SMA1.EHZ. 2021-07-08T21:17:25.12 0.1 undecidable manual P 156 46.5201 50 -0.4 87
IV.CING.HHZ. 2021-07-08T21:17:24.39 0.1 undecidable manual P 11 41.0256 50 -0.29 89
IV.GUMA.HHZ. 2021-07-08T21:17:24.56 0.6 undecidable manual S 74 19.9689 113 0.41 45
IV.FOSV.EHZ. 2021-07-08T21:17:24.56 0.1 negative manual P 319 41.625 50 -0.2 91
IV.ATCC.EHZ. 2021-07-08T21:17:24.67 0.1 negative manual P 297 41.8248 50 -0.13 92
IV.SEF1.HNN. 2021-07-08T21:17:24.24 0.6 undecidable manual S 321 19.3695 114 0.27 47
IV.NRCA.HHZ. 2021-07-08T21:17:24.38 0.3 undecidable manual S 176 19.869 113 0.26 70
IV.GAVE.EHZ. 2021-07-08T21:17:24.28 0.1 positive manual P 205 39.2274 50 -0.11 93
IV.ASSB.HHZ. 2021-07-08T21:17:23.61 0.1 negative manual P 276 35.8419 50 -0.27 91
IV.EL6.EHZ. 2021-07-08T21:17:23.62 0.1 undecidable manual P 0 35.2425 50 -0.16 93
IV.CESI.HHZ. 2021-07-08T21:17:23.30 0.3 undecidable manual S 267 15.7731 119 0.43 68
IV.MTRA.EHZ. 2021-07-08T21:17:23.70 0.1 negative manual P 139 37.2294 50 -0.38 88
IV.MF5.EHZ. 2021-07-08T21:17:23.11 0.1 undecidable manual P 95 29.3484 106 0.36 90
IV.MC2.EHZ. 2021-07-08T21:17:22.40 0.6 undecidable manual S 147 13.3755 123 0.27 47
IV.MML1.EHZ. 2021-07-08T21:17:22.63 0.6 undecidable manual S 317 15.2736 119 -0.07 49
IV.PF6.EHN. 2021-07-08T21:17:22.79 0.6 undecidable manual S 29 15.9729 118 -0.12 48
IV.MMO1.EHZ. 2021-07-08T21:17:21.28 0.1 negative manual P 124 22.3554 111 -0.13 96
IV.GUMA.HHZ. 2021-07-08T21:17:21.30 0.1 undecidable manual P 74 19.9689 113 0.33 92
IV.CSP1.EHZ. 2021-07-08T21:17:21.85 0.3 undecidable manual S 44 12.2766 125 0.02 75
IV.SAP2.EHE. 2021-07-08T21:17:21.74 0.6 undecidable manual P 69 26.0517 108 -0.38 45
IV.PF6.EHN. 2021-07-08T21:17:20.16 0.1 undecidable manual P 29 15.9729 118 -0.09 97
IV.SEF1.HNN. 2021-07-08T21:17:20.94 0.3 undecidable manual P 321 19.3695 114 0.08 73
IV.NRCA.HHZ. 2021-07-08T21:17:20.96 0.1 negative manual P 176 19.869 113 0.01 98
IV.FEMA.HNZ. 2021-07-08T21:17:20.07 0.6 undecidable manual S 216 6.8931 142 -0.37 47
IT.MTCL.HGZ. 2021-07-08T21:17:20.64 0.3 undecidable manual S 256 8.3805 136 -0.14 73
IV.MML1.EHZ. 2021-07-08T21:17:20.15 0.1 negative manual P 317 15.2736 119 0.02 99
IV.CESI.HHZ. 2021-07-08T21:17:20.45 0.1 negative manual P 267 15.7731 119 0.23 95
IV.CSP1.EHZ. 2021-07-08T21:17:19.69 0.1 positive manual P 44 12.2766 125 0.06 99
IV.MC2.EHZ. 2021-07-08T21:17:19.86 0.1 negative manual P 147 13.3755 123 0.06 98
IT.MTCL.HGZ. 2021-07-08T21:17:19.06 0.1 undecidable manual P 256 8.3805 136 0.04 100
IV.FEMA.HNZ. 2021-07-08T21:17:18.86 0.1 positive manual P 216 6.8931 142 0.04 100
IV.FDMO.HHN. 2021-07-08T21:17:17.95 0.1 positive manual P 340 2.8971 162 -0.49 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNN. ML:1.6 0.00063052325 0.448 AML other m 2021-07-08T21:17:20.06
IV.CSP1.EHE. ML:2.2 0.0021349999999999997 1.82 AML other m 2021-07-08T21:17:21.07
IV.FEMA.HNE. ML:1.9 0.0013587055000000002 0.4096 AML other m 2021-07-08T21:17:20.35
IV.MML1.HNN. ML:1.8 0.0007295 0.38 AML other m 2021-07-08T21:17:23.29
IV.MML1.EHN. ML:1.8 0.0007395 0.2 AML other m 2021-07-08T21:17:23.29
IV.CESI.HHE. ML:2.1 0.0011480000000000001 0.46 AML other m 2021-07-08T21:17:23.63
IV.CESI.HHN. ML:2.2 0.00151 0.12 AML other m 2021-07-08T21:17:23.47
IV.CSP1.EHN. ML:2.1 0.001487791 0.1536 AML other m 2021-07-08T21:17:21.99
IV.MML1.HNE. ML:1.7 0.00047650000000000004 0.96 AML other m 2021-07-08T21:17:24.02
IV.MML1.EHE. ML:1.7 0.0004745 0.96 AML other m 2021-07-08T21:17:24.50
IV.NRCA.HNN. ML:2.0 0.00079 0.34 AML other m 2021-07-08T21:17:24.63
IV.NRCA.HHN. ML:2.1 0.0009260000000000001 0.3 AML other m 2021-07-08T21:17:24.63
IV.NRCA.HNE. ML:2.0 0.000868 0.3 AML other m 2021-07-08T21:17:24.80
IV.NRCA.HHE. ML:2.0 0.0008900000000000001 0.3 AML other m 2021-07-08T21:17:24.80
IV.GUMA.HNE. ML:2.1 0.000988 0.34 AML other m 2021-07-08T21:17:25.20
IV.GUMA.HHE. ML:2.4 0.001745 0.34 AML other m 2021-07-08T21:17:25.22
IV.GUMA.HNN. ML:2.4 0.002129 0.36 AML other m 2021-07-08T21:17:25.23
IV.GUMA.HHN. ML:2.0 0.0008435000000000001 0.4 AML other m 2021-07-08T21:17:26.00
IV.ASSB.HHN. ML:2.0 0.0004415 0.36 AML other m 2021-07-08T21:17:29.51
IV.GAVE.EHN. ML:2.0 0.00034050000000000004 0.22 AML other m 2021-07-08T21:17:30.87
IV.MF5.EHE. ML:1.6 0.0002167 0.76 AML other m 2021-07-08T21:17:30.42
IV.GAVE.EHE. ML:1.9 0.000284 0.88 AML other m 2021-07-08T21:17:31.28
IV.ASSB.HHE. ML:1.8 0.00023299999999999997 1.3 AML other m 2021-07-08T21:17:31.95
IV.MTRA.EHE. ML:1.7 0.0001875 0.58 AML other m 2021-07-08T21:17:31.36
IV.FOSV.EHE. ML:1.5 0.00010400000000000001 0.54 AML other m 2021-07-08T21:17:31.13
IV.ATCC.EHN. ML:1.8 0.000199 0.28 AML other m 2021-07-08T21:17:31.48
IV.MF5.EHN. ML:1.7 0.000254 0.92 AML other m 2021-07-08T21:17:31.99
IV.MTRA.EHN. ML:1.6 0.0001495 1.3 AML other m 2021-07-08T21:17:31.02
IV.ATCC.EHE. ML:2.0 0.000308 0.12 AML other m 2021-07-08T21:17:31.84
IV.CING.HHE. ML:1.6 0.000128 0.52 AML other m 2021-07-08T21:17:31.86
IV.CING.HHN. ML:1.4 0.00008595 1.6 AML other m 2021-07-08T21:17:32.82
IV.FOSV.EHN. ML:1.7 0.0001535 0.46 AML other m 2021-07-08T21:17:32.99
IV.MOMA.HHE. ML:1.6 0.00011899999999999999 0.2 AML other m 2021-07-08T21:17:34.29
IV.MOMA.HHN. ML:1.7 0.0001275 0.18 AML other m 2021-07-08T21:17:34.87
IV.LNSS.HHN. ML:1.8 0.000163 0.74 AML other m 2021-07-08T21:17:35.39
IV.MURB.HHE. ML:1.9 0.000168 0.82 AML other m 2021-07-08T21:17:35.88
IV.SSFR.HNE. ML:2.2 0.000399 1.02 AML other m 2021-07-08T21:17:35.38
IV.SSFR.HHE. ML:2.2 0.0003465 1.04 AML other m 2021-07-08T21:17:35.90
IV.ARRO.EHE. ML:1.4 0.0000558 1.8 AML other m 2021-07-08T21:17:35.99
IV.ARVD.HHN. ML:1.5 0.0000729 0.96 AML other m 2021-07-08T21:17:36.09
IV.ARVD.HHE. ML:1.7 0.000106 1.58 AML other m 2021-07-08T21:17:36.96
IV.SSFR.HHN. ML:2.1 0.0002875 1.26 AML other m 2021-07-08T21:17:36.23
IV.SSFR.HNN. ML:2.2 0.00039150000000000003 1.26 AML other m 2021-07-08T21:17:36.23
IV.MURB.HHN. ML:1.9 0.00017649999999999998 0.14 AML other m 2021-07-08T21:17:36.41
IV.SMA1.EHN. ML:1.5 0.0000955 1.48 AML other m 2021-07-08T21:17:36.90
IV.ARRO.EHN. ML:1.4 0.00005735 0.18 AML other m 2021-07-08T21:17:37.33
IV.LNSS.HHE. ML:1.7 0.00014900000000000002 0.64 AML other m 2021-07-08T21:17:37.09
IV.RM33.EHN. ML:1.2 0.00004205 0.64 AML other m 2021-07-08T21:17:37.66
IV.CESX.HHN. ML:1.6 0.00008765 0.2 AML other m 2021-07-08T21:17:38.18
IV.CESX.HHE. ML:1.6 0.0000785 0.4 AML other m 2021-07-08T21:17:38.29
IV.RM33.EHE. ML:1.4 0.00005535 0.54 AML other m 2021-07-08T21:17:38.86
IV.SMA1.EHE. ML:1.6 0.00011549999999999999 1.3 AML other m 2021-07-08T21:17:41.94
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