Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 19-04-2021 and time 05:18:49 (Italy) in region 2 km S Fiordimonte (MC)

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

  • 19-04-2021 03:18:49 (UTC)
  • 19-04-2021 05:18:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0230, 13.0910 at 8 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
Pieve Torina MC 4 1458 1660
Pievebovigliana MC 5 866 2526
Fiastra MC 6 559 3085
Acquacanina MC 7 121 3206
Muccia MC 8 915 4121
Monte Cavallo MC 8 145 4266
Ussita MC 10 444 4710
Visso MC 10 1107 5817
Bolognola MC 12 142 5959
Serravalle di Chienti MC 13 1070 7029
Camerino MC 13 6974 14003
Castelsantangelo sul Nera MC 15 281 14284
Preci PG 17 724 15008
Cessapalombo MC 17 512 15520
Caldarola MC 17 1823 17343
Sarnano MC 17 3264 20607
Sefro MC 18 422 21029
Camporotondo di Fiastrone MC 19 563 21592
Serrapetrona MC 19 966 22558
Pioraco MC 19 1134 23692
Belforte del Chienti MC 20 1886 25578
Sellano PG 20 1079 26657

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Foligno (57155 inhabitants)
58 Km E of Perugia (166134 inhabitants)
63 Km NE of Terni (111501 inhabitants)
64 Km NW of Teramo (54892 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Fano (60888 inhabitants)
100 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 2021-04-19
03:18:49		 43.0232 13.091 8 2021-07-12
16:55:13		 Bollettino Sismico Italiano INGV 90657431
Reviewed
Rev100 		ML 1.8 2021-04-19
03:18:49		 43.0248 13.0943 9 2021-04-19
03:26:47		 Sala Sismica INGV-Roma 89239731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-19 03:18:49 ± 0.05
Latitude 43.0232 ± 0.0027
Longitude 13.0910 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90657431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 313
Semi-minor axis of confidence ellipse (meter) 299
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 172
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 25
Number of associated phases, regardless of their use for origin computation 63
Number of defining phases 63
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.01349
Epicentral distance of station farthest from the epicenter (degree) 0.83547
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 37
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 89239731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-19 03:26:47

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 90657431
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-22 09:59:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESX.HHZ. 2021-04-19T03:19:09.21 0.3 undecidable manual S 222 61.6938 50 0.36 64
IV.RM33.EHZ. 2021-04-19T03:19:08.13 0.3 undecidable manual S 170 57.8976 50 0.27 66
IV.ARVD.HHZ. 2021-04-19T03:19:07.46 0.3 undecidable manual S 347 54.0015 50 0.64 60
IV.LNSS.HHZ. 2021-04-19T03:19:05.14 0.3 undecidable manual S 185 46.8198 50 0.25 68
IV.MOMA.HHZ. 2021-04-19T03:19:05.81 0.3 undecidable manual S 240 48.8178 50 0.38 65
IV.VCEL.EHZ. 2021-04-19T03:19:05.36 0.3 undecidable manual P 139 92.7405 50 0 65
IV.SMA1.EHZ. 2021-04-19T03:19:05.05 0.3 undecidable manual S 155 47.9187 50 -0.13 69
IV.MNTT.EHZ. 2021-04-19T03:19:04.85 0.1 undecidable manual S 84 41.1255 50 1.47 54
IV.FOSV.EHZ. 2021-04-19T03:19:03.22 0.3 undecidable manual S 319 40.2264 50 0.08 71
IV.ATCC.EHZ. 2021-04-19T03:19:03.72 0.1 undecidable manual S 296 40.7259 50 0.46 87
IV.GAVE.EHZ. 2021-04-19T03:19:03.06 0.1 undecidable manual S 204 40.0266 50 -0.03 95
IV.MPAG.EHZ. 2021-04-19T03:19:02.45 0.3 undecidable manual P 338 72.372 50 0.22 65
IV.PIEI.HHZ. 2021-04-19T03:19:02.13 0.1 undecidable manual P 322 72.4719 50 -0.11 88
IV.MTRA.EHZ. 2021-04-19T03:19:02.18 0.1 undecidable manual S 140 38.628 50 -0.52 86
IV.CING.HNE. 2021-04-19T03:19:02.66 0.3 undecidable manual S 12 40.0266 50 -0.41 66
IV.NARO.HHZ. 2021-04-19T03:19:02.96 0.1 undecidable manual P 328 77.0673 50 0 90
IV.MNTP.HNZ. 2021-04-19T03:19:02.12 0.6 undecidable manual S 67 33.1446 104 1 35
IV.ASSB.HHZ. 2021-04-19T03:19:01.77 0.1 undecidable manual S 274 35.1426 50 0 97
IV.EL6.EHZ. 2021-04-19T03:19:01.04 0.3 undecidable manual S 1 33.9438 103 -0.35 68
IV.MF5.EHN. 2021-04-19T03:19:00.68 0.1 undecidable manual S 97 30.1476 105 0.57 86
IV.CESX.HHZ. 2021-04-19T03:19:00.32 0.1 undecidable manual P 222 61.6938 50 -0.26 87
IV.FRON.EHZ. 2021-04-19T03:19:00.48 0.1 undecidable manual P 332 62.2932 50 -0.2 89
IV.RM33.EHZ. 2021-04-19T03:18:59.71 0.1 undecidable manual P 170 57.8976 50 -0.29 87
IV.OFFI.HHZ. 2021-04-19T03:18:59.27 0.3 undecidable manual P 101 49.2174 50 0.6 61
IV.SAP2.EHZ. 2021-04-19T03:18:59.52 0.3 undecidable manual S 72 26.2515 107 0.71 61
IV.ARVD.HHZ. 2021-04-19T03:18:59.20 0.1 undecidable manual P 347 54.0015 50 -0.2 90
IV.TERO.HHZ. 2021-04-19T03:18:59.86 0.1 undecidable manual P 137 60.9945 50 -0.61 80
IV.MURB.HHZ. 2021-04-19T03:18:59.34 0.1 undecidable manual P 300 53.0025 50 0.09 92
IV.SSFR.HHZ. 2021-04-19T03:18:58.96 0.1 undecidable manual P 332 52.2033 50 -0.16 91
IV.MOMA.HHZ. 2021-04-19T03:18:58.46 0.1 undecidable manual P 240 48.8178 50 -0.14 92
IV.MNTT.EHZ. 2021-04-19T03:18:57.80 0.1 undecidable manual P 84 41.1255 50 0.38 88
IV.NRCA.HHZ. 2021-04-19T03:18:57.08 0.3 undecidable manual S 175 21.1677 111 -0.05 74
IV.GAVE.EHZ. 2021-04-19T03:18:57.11 0.1 positive manual P 204 40.0266 50 -0.14 93
IV.SMA1.EHZ. 2021-04-19T03:18:57.99 0.1 undecidable manual P 155 47.9187 50 -0.47 86
IV.MMO1.EHZ. 2021-04-19T03:18:57.35 0.3 undecidable manual S 126 23.5542 109 -0.57 65
IV.FOSV.EHZ. 2021-04-19T03:18:57.13 0.1 undecidable manual P 319 40.2264 50 -0.15 93
IV.LNSS.HHZ. 2021-04-19T03:18:57.96 0.1 undecidable manual P 185 46.8198 50 -0.33 89
IV.ATCC.EHZ. 2021-04-19T03:18:57.30 0.1 positive manual P 296 40.7259 50 -0.05 95
IV.CING.HNE. 2021-04-19T03:18:56.78 0.1 positive manual P 12 40.0266 50 -0.46 87
IV.MNTP.HNZ. 2021-04-19T03:18:56.62 0.6 undecidable manual P 67 33.1446 104 0.51 44
IV.ASSB.HHZ. 2021-04-19T03:18:56.28 0.1 positive manual P 274 35.1426 50 -0.21 93
IV.MTRA.EHZ. 2021-04-19T03:18:56.47 0.1 undecidable manual P 140 38.628 50 -0.56 85
IV.MC2.EHZ. 2021-04-19T03:18:55.26 0.3 undecidable manual S 147 14.7741 119 0.15 73
IV.SAP2.EHZ. 2021-04-19T03:18:55.01 0.1 undecidable manual P 72 26.2515 107 0.23 94
IV.CESI.HHZ. 2021-04-19T03:18:55.94 0.3 undecidable manual S 262 15.2736 118 0.67 63
IV.EL6.EHZ. 2021-04-19T03:18:55.84 0.1 positive manual P 1 33.9438 103 -0.43 89
IV.MF5.EHN. 2021-04-19T03:18:55.65 0.1 positive manual P 97 30.1476 105 0.12 95
IV.PF6.EHE. 2021-04-19T03:18:55.00 0.6 undecidable manual S 33 15.2736 118 -0.26 48
IV.CSP1.EHZ. 2021-04-19T03:18:54.04 0.6 undecidable manual S 50 11.9769 124 -0.25 48
IV.MMO1.EHZ. 2021-04-19T03:18:54.02 0.1 positive manual P 126 23.5542 109 -0.25 94
IV.FEMA.HNZ. 2021-04-19T03:18:53.45 0.6 undecidable manual S 206 7.5813 137 0.33 47
IV.NRCA.HHZ. 2021-04-19T03:18:53.79 0.1 undecidable manual P 175 21.1677 111 -0.02 99
IV.CESI.HHZ. 2021-04-19T03:18:53.17 0.1 positive manual P 262 15.2736 118 0.43 92
IT.MTCL.HGZ. 2021-04-19T03:18:53.37 0.3 undecidable manual S 246 8.0808 135 0.12 74
IV.MDAR.HNE. 2021-04-19T03:18:53.39 0.1 undecidable manual P 13 19.2696 113 -0.07 98
IV.PF6.EHE. 2021-04-19T03:18:52.57 0.1 positive manual P 33 15.2736 118 -0.16 97
IV.MC2.EHZ. 2021-04-19T03:18:52.72 0.1 undecidable manual P 147 14.7741 119 0.08 99
IV.CSP1.EHZ. 2021-04-19T03:18:52.13 0.1 positive manual P 50 11.9769 124 -0.04 100
IV.MML1.EHZ. 2021-04-19T03:18:52.73 0.1 positive manual P 316 13.875 120 0.23 96
IV.FDMO.HHN. 2021-04-19T03:18:51.25 0.1 undecidable manual S 348 1.4985 169 -0.88 79
IT.MTCL.HGZ. 2021-04-19T03:18:51.85 0.1 positive manual P 246 8.0808 135 0.28 96
IV.FEMA.HNZ. 2021-04-19T03:18:51.78 0.1 positive manual P 206 7.5813 137 0.29 96
IV.FDMO.HHN. 2021-04-19T03:18:50.68 0.3 undecidable manual P 348 1.4985 169 -0.25 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNE. ML:2.0 0.00177 1 AML other m 2021-04-19T03:18:53.48
IV.FEMA.HNN. ML:1.9 0.0014140000000000001 1.28 AML other m 2021-04-19T03:18:53.67
IV.CSP1.EHE. ML:2.2 0.00213 0.68 AML other m 2021-04-19T03:18:54.92
IV.CSP1.EHN. ML:2.2 0.00193 0.26 AML other m 2021-04-19T03:18:55.70
IV.CESI.HNN. ML:1.7 0.000527 0.32 AML other m 2021-04-19T03:18:56.19
IV.CESI.HHE. ML:1.8 0.0006054999999999999 0.2 AML other m 2021-04-19T03:18:56.41
IV.CESI.HNE. ML:1.7 0.000551 0.2 AML other m 2021-04-19T03:18:56.31
IV.CESI.HHN. ML:1.7 0.0005685 0.9 AML other m 2021-04-19T03:18:56.19
IV.NRCA.HHE. ML:2.2 0.001155 0.8 AML other m 2021-04-19T03:18:58.89
IV.NRCA.HNE. ML:2.2 0.00113 0.8 AML other m 2021-04-19T03:18:58.89
IV.SAP2.EHN. ML:2.6 0.00239 0.46 AML other m 2021-04-19T03:18:59.86
IV.NRCA.HNN. ML:2.0 0.0007135 0.42 AML other m 2021-04-19T03:18:59.60
IV.NRCA.HHN. ML:2.0 0.000665 0.44 AML other m 2021-04-19T03:18:59.81
IV.EL6.EHE. ML:1.8 0.000258 0.84 AML other m 2021-04-19T03:19:01.85
IV.SAP2.EHE. ML:1.9 0.0004435 0.32 AML other m 2021-04-19T03:19:01.60
IV.EL6.EHN. ML:1.8 0.0002925 0.28 AML other m 2021-04-19T03:19:02.14
IV.ASSB.HHN. ML:2.0 0.0004625 0.18 AML other m 2021-04-19T03:19:02.06
IV.MTRA.EHE. ML:1.7 0.000165 0.24 AML other m 2021-04-19T03:19:02.70
IV.ASSB.HHE. ML:1.9 0.00033199999999999994 0.32 AML other m 2021-04-19T03:19:02.72
IV.FOSV.EHE. ML:1.3 0.00006775000000000001 1.08 AML other m 2021-04-19T03:19:03.40
IV.GAVE.EHE. ML:2.2 0.0005484999999999999 0.14 AML other m 2021-04-19T03:19:03.47
IV.GAVE.EHN. ML:2.2 0.0005489999999999999 0.56 AML other m 2021-04-19T03:19:03.48
IV.ATCC.EHN. ML:1.9 0.000259 0.24 AML other m 2021-04-19T03:19:03.96
IV.FOSV.EHN. ML:1.3 0.0000761 1.2 AML other m 2021-04-19T03:19:03.94
IV.ATCC.EHE. ML:1.9 0.0002705 0.18 AML other m 2021-04-19T03:19:04.01
IV.MTRA.EHN. ML:1.7 0.00017299999999999998 0.42 AML other m 2021-04-19T03:19:04.74
IV.LNSS.HHN. ML:1.7 0.0001565 0.74 AML other m 2021-04-19T03:19:05.61
IV.SMA1.EHE. ML:1.6 0.0000986 0.6 AML other m 2021-04-19T03:19:06.09
IV.MNTT.EHE. ML:2.4 0.000996 0.1 AML other m 2021-04-19T03:19:06.72
IV.SMA1.EHN. ML:1.6 0.0000984 1.68 AML other m 2021-04-19T03:19:06.96
IV.MOMA.HHE. ML:1.7 0.0001265 0.7 AML other m 2021-04-19T03:19:07.20
IV.LNSS.HHE. ML:1.7 0.00014450000000000002 1.2 AML other m 2021-04-19T03:19:07.96
IV.MOMA.HHN. ML:1.9 0.00020400000000000003 0.2 AML other m 2021-04-19T03:19:07.69
IV.ARVD.HHE. ML:1.5 0.00007819999999999999 0.42 AML other m 2021-04-19T03:19:07.64
IV.MURB.HHE. ML:1.8 0.0001525 0.42 AML other m 2021-04-19T03:19:08.33
IV.ARVD.HHN. ML:1.2 0.000041099999999999996 0.96 AML other m 2021-04-19T03:19:08.79
IV.MURB.HHN. ML:1.7 0.0001211 1.58 AML other m 2021-04-19T03:19:08.08
IV.MPAG.EHE. ML:1.3 0.00002825 0.8 AML other m 2021-04-19T03:19:09.40
IV.RM33.EHE. ML:1.3 0.00004635 0.3 AML other m 2021-04-19T03:19:09.27
IV.SSFR.HHN. ML:1.8 0.00015150000000000002 0.18 AML other m 2021-04-19T03:19:09.65
IV.RM33.EHN. ML:1.4 0.00005745 1 AML other m 2021-04-19T03:19:09.32
IV.SSFR.HHE. ML:1.6 0.000111 0.18 AML other m 2021-04-19T03:19:09.79
IV.MNTT.EHN. ML:2.1 0.000424 0.46 AML other m 2021-04-19T03:19:10.01
IV.TERO.HHN. ML:1.6 0.00008 0.08 AML other m 2021-04-19T03:19:10.02
IV.TERO.HHE. ML:1.4 0.0000553 0.48 AML other m 2021-04-19T03:19:10.22
IV.CESX.HHE. ML:1.8 0.0001245 1.6 AML other m 2021-04-19T03:19:10.86
IV.FRON.EHN. ML:1.4 0.00005235 0.7 AML other m 2021-04-19T03:19:11.50
IV.OFFI.HHN. ML:1.7 0.000132 0.98 AML other m 2021-04-19T03:19:11.48
IV.CESX.HHN. ML:1.7 0.00011175 0.28 AML other m 2021-04-19T03:19:12.18
IV.OFFI.HHE. ML:1.7 0.000135 0.6 AML other m 2021-04-19T03:19:12.55
IV.FRON.EHE. ML:1.3 0.00003785 0.42 AML other m 2021-04-19T03:19:13.96
IV.PIEI.HHE. ML:1.3 0.0000343 0.16 AML other m 2021-04-19T03:19:15.79
IV.PIEI.HHN. ML:1.2 0.00002265 0.18 AML other m 2021-04-19T03:19:16.16
IV.MPAG.EHN. ML:1.2 0.0000259 1.08 AML other m 2021-04-19T03:19:18.22
IV.VCEL.EHE. ML:1.8 0.0000639 0.78 AML other m 2021-04-19T03:19:23.59
IV.VCEL.EHN. ML:1.7 0.00005895 0.56 AML other m 2021-04-19T03:19:25.36
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