Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 03-04-2020 and time 23:28:41 (Italy) in region 3 km NE Nocera Umbra (PG)

A magnitude ML 1.8 earthquake occured in region: 3 km NE Nocera Umbra (PG), on

  • 03-04-2020 21:28:41 (UTC)
  • 03-04-2020 23:28:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1340, 12.8220 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
Nocera Umbra PG 4 5839 5839
Valtopina PG 10 1398 7237
Sefro MC 11 422 7659
Fiuminata MC 11 1402 9061
Gualdo Tadino PG 11 15208 24269
Serravalle di Chienti MC 13 1070 25339
Pioraco MC 14 1134 26473
Esanatoglia MC 17 2034 28507
Valfabbrica PG 18 3389 31896
Assisi PG 18 28299 60195
Fossato di Vico PG 19 2840 63035
Muccia MC 19 915 63950
Spello PG 20 8645 72595

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Foligno (57155 inhabitants)
35 Km E of Perugia (166134 inhabitants)
65 Km N of Terni (111501 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
81 Km S of Fano (60888 inhabitants)
85 Km E of Arezzo (99543 inhabitants)
87 Km S of Pesaro (94582 inhabitants)
89 Km NW of Teramo (54892 inhabitants)
99 Km NE of Viterbo (67173 inhabitants)
99 Km NW of L'Aquila (69753 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 2020-04-03
21:28:41		 43.1342 12.8217 9 2020-07-18
21:08:42		 Bollettino Sismico Italiano INGV 81006921
Reviewed
Rev100 		ML 1.8 2020-04-03
21:28:41		 43.1362 12.8262 10 2020-04-03
21:32:59		 Sala Sismica INGV-Roma 77849391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-03 21:28:41 ± 0.04
Latitude 43.1342 ± 0.0027
Longitude 12.8217 ± 0.0037
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 81006921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 306
Semi-minor axis of confidence ellipse (meter) 143
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
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) 82
Number of associated phases, regardless of their use for origin computation 73
Number of defining phases 73
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.09263
Epicentral distance of station farthest from the epicenter (degree) 0.76802
Number of stations at which the event was observed 41
Number of stations from which data was used for origin computation 41
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 68
Type of magnitude ML
Reference to an origin 77849391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-03 21:32:59

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 68
Type of magnitude ML
Reference to an origin 81006921
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-07-13 13:34:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PE3.EHZ. 2020-04-03T21:29:03.53 0.6 undecidable manual S 337 67.5768 50 1.56 25
IV.CESX.HHZ. 2020-04-03T21:29:00.62 0.6 undecidable manual S 198 61.3941 50 0.31 43
IV.LNSS.HHZ. 2020-04-03T21:29:00.38 0.6 undecidable manual S 163 61.5939 50 0.03 46
IV.NARO.HHZ. 2020-04-03T21:28:59.18 0.6 undecidable manual S 340 56.2992 50 0.22 45
IV.MF5.EHZ. 2020-04-03T21:28:59.66 0.6 undecidable manual S 107 54.2013 50 1.27 30
IV.APEC.HHZ. 2020-04-03T21:28:59.92 0.6 undecidable manual S 326 57.0984 50 0.75 38
IV.MPAG.EHZ. 2020-04-03T21:28:58.98 0.6 undecidable manual S 355 55.1004 50 0.34 44
IV.PIEI.HHZ. 2020-04-03T21:28:57.40 0.6 undecidable manual S 333 50.2164 50 0.08 46
IV.ATPI.EHZ. 2020-04-03T21:28:57.27 0.6 undecidable manual S 316 48.8178 50 0.33 44
IV.MMO1.EHZ. 2020-04-03T21:28:56.88 0.6 undecidable manual S 122 48.5181 50 0 47
IV.GUMA.HHZ. 2020-04-03T21:28:55.90 0.6 undecidable manual S 101 42.3243 50 0.68 40
IV.FRON.EHZ. 2020-04-03T21:28:55.45 0.3 undecidable manual S 350 43.2234 50 -0.01 71
IV.MOMA.HHZ. 2020-04-03T21:28:55.41 0.3 undecidable manual S 209 41.9247 50 0.29 68
IV.TERO.HHZ. 2020-04-03T21:28:55.61 0.3 undecidable manual P 131 85.248 50 -0.25 63
IV.ATVO.HHZ. 2020-04-03T21:28:55.56 0.6 undecidable manual S 309 43.3233 50 0.07 47
IV.ATLO.EHE. 2020-04-03T21:28:54.22 0.6 undecidable manual S 301 39.0276 50 -0.13 47
IV.PARC.HHZ. 2020-04-03T21:28:54.33 0.3 undecidable manual P 321 73.9704 50 0.21 65
IV.ARVD.HHZ. 2020-04-03T21:28:54.79 0.3 undecidable manual S 13 41.5251 50 -0.21 69
IV.RM33.EHZ. 2020-04-03T21:28:54.20 0.3 undecidable manual P 155 76.368 50 -0.29 63
IV.NRCA.HHZ. 2020-04-03T21:28:54.55 0.6 undecidable manual S 144 40.9257 50 -0.3 45
IV.MNTT.EHZ. 2020-04-03T21:28:53.25 0.1 undecidable manual P 97 63.1923 50 0.78 74
IV.PE3.EHZ. 2020-04-03T21:28:53.70 0.3 undecidable manual P 337 67.5768 50 0.56 60
IV.COR1.EHZ. 2020-04-03T21:28:52.13 0.3 undecidable manual P 15 56.9985 50 0.62 60
IV.CSP1.EHZ. 2020-04-03T21:28:52.21 0.6 undecidable manual S 98 31.3464 50 -0.09 48
IV.ATFO.HHZ. 2020-04-03T21:28:52.58 0.3 undecidable manual S 322 32.745 50 -0.09 72
IV.EL6.EHZ. 2020-04-03T21:28:52.08 0.6 undecidable manual S 46 31.3464 50 -0.2 47
IV.ARRO.EHZ. 2020-04-03T21:28:52.15 0.3 undecidable manual P 184 61.7937 50 -0.09 68
IV.CESX.HHZ. 2020-04-03T21:28:52.11 0.3 undecidable manual P 198 61.3941 50 -0.08 68
IV.SSFR.HHZ. 2020-04-03T21:28:52.75 0.3 undecidable manual S 355 33.6441 50 -0.15 71
IV.LNSS.HHZ. 2020-04-03T21:28:51.87 0.1 undecidable manual P 163 61.5939 50 -0.35 86
IV.MURB.HHE. 2020-04-03T21:28:51.57 0.6 undecidable manual S 301 27.9498 109 0.24 47
IV.NARO.HHZ. 2020-04-03T21:28:51.05 0.1 undecidable manual P 340 56.2992 50 -0.36 86
IV.MF5.EHZ. 2020-04-03T21:28:51.45 0.3 undecidable manual P 107 54.2013 50 0.37 65
IV.APEC.HHZ. 2020-04-03T21:28:51.49 0.3 undecidable manual P 326 57.0984 50 -0.04 69
IV.PIEI.HHZ. 2020-04-03T21:28:50.14 0.1 undecidable manual P 333 50.2164 50 -0.32 88
IV.ATPI.EHZ. 2020-04-03T21:28:50.08 0.1 undecidable manual P 316 48.8178 50 -0.17 91
IV.MPAG.EHZ. 2020-04-03T21:28:50.99 0.1 undecidable manual P 355 55.1004 50 -0.23 89
IV.ATMI.HHZ. 2020-04-03T21:28:50.98 0.3 undecidable manual P 297 49.9167 50 0.55 62
IV.MMO1.EHZ. 2020-04-03T21:28:50.02 0.1 undecidable manual P 122 48.5181 50 -0.19 91
IV.SAP2.EHZ. 2020-04-03T21:28:50.25 0.3 undecidable manual P 95 46.9197 50 0.29 67
IV.MOMA.HHZ. 2020-04-03T21:28:49.03 0.1 undecidable manual P 209 41.9247 50 -0.16 93
IV.ATVO.HHZ. 2020-04-03T21:28:49.18 0.1 undecidable manual P 309 43.3233 50 -0.23 91
IT.MTCL.HGZ. 2020-04-03T21:28:49.01 0.6 undecidable manual S 137 21.1677 114 -0.14 48
IT.FOPC.HGZ. 2020-04-03T21:28:49.09 0.6 undecidable manual S 208 20.6682 115 0.13 48
IV.GUMA.HHZ. 2020-04-03T21:28:49.36 0.1 undecidable manual P 101 42.3243 50 0.11 94
IV.FDMO.HHZ. 2020-04-03T21:28:49.97 0.6 undecidable manual S 117 24.0537 111 -0.1 48
IV.FRON.EHZ. 2020-04-03T21:28:49.03 0.3 undecidable manual P 350 43.2234 50 -0.36 66
IV.NRCA.HHZ. 2020-04-03T21:28:48.76 0.1 positive manual P 144 40.9257 50 -0.28 90
IV.ATLO.EHE. 2020-04-03T21:28:48.52 0.1 undecidable manual P 301 39.0276 50 -0.22 92
IV.ARVD.HHZ. 2020-04-03T21:28:48.81 0.1 undecidable manual P 13 41.5251 50 -0.31 90
IV.FOSV.EHZ. 2020-04-03T21:28:48.10 0.6 undecidable manual S 345 18.4704 117 -0.19 48
IV.CESI.HHZ. 2020-04-03T21:28:47.68 0.6 undecidable manual S 155 15.873 121 0.19 48
IV.SSFR.HHZ. 2020-04-03T21:28:47.52 0.1 undecidable manual P 355 33.6441 50 -0.39 90
IV.SNTG.HNZ. 2020-04-03T21:28:47.59 0.6 undecidable manual S 36 16.4724 120 -0.09 49
IV.ATFO.HHZ. 2020-04-03T21:28:47.63 0.1 undecidable manual P 322 32.745 50 -0.14 94
IV.CSP1.EHZ. 2020-04-03T21:28:47.31 0.1 undecidable manual P 98 31.3464 50 -0.25 93
IV.ATCC.EHZ. 2020-04-03T21:28:47.69 0.6 undecidable manual S 291 15.7731 121 0.23 48
IV.EL6.EHZ. 2020-04-03T21:28:47.36 0.1 positive manual P 46 31.3464 50 -0.19 94
IV.FDMO.HHZ. 2020-04-03T21:28:46.11 0.1 positive manual P 117 24.0537 111 -0.17 95
IV.FIU1.HNZ. 2020-04-03T21:28:46.02 0.6 undecidable manual S 56 10.7781 131 -0.03 50
IV.MML1.HNE. 2020-04-03T21:28:46.59 0.6 undecidable manual S 101 12.3765 127 0.11 49
IV.MURB.HHE. 2020-04-03T21:28:46.91 0.1 undecidable manual P 301 27.9498 109 -0.1 96
IV.SEF1.HNZ. 2020-04-03T21:28:45.90 0.6 undecidable manual S 82 10.2786 132 -0.03 50
IT.FOPC.HGZ. 2020-04-03T21:28:45.68 0.1 undecidable manual P 208 20.6682 115 0.04 98
IV.FOSV.EHZ. 2020-04-03T21:28:45.19 0.1 negative manual P 345 18.4704 117 -0.06 98
IT.MTCL.HGZ. 2020-04-03T21:28:45.62 0.3 undecidable manual P 137 21.1677 114 -0.12 73
IV.PIO1.HNZ. 2020-04-03T21:28:44.59 0.1 undecidable manual P 70 13.9749 124 0.12 98
IV.FIU1.HNZ. 2020-04-03T21:28:44.07 0.1 undecidable manual P 56 10.7781 131 0.12 99
IV.SNTG.HNZ. 2020-04-03T21:28:44.90 0.1 undecidable manual P 36 16.4724 120 0 100
IV.CESI.HHZ. 2020-04-03T21:28:44.80 0.1 undecidable manual P 155 15.873 121 0.01 100
IV.SEF1.HNZ. 2020-04-03T21:28:44.01 0.1 undecidable manual P 82 10.2786 132 0.12 99
IV.ATCC.EHZ. 2020-04-03T21:28:44.98 0.1 undecidable manual P 291 15.7731 121 0.21 96
IV.MML1.HNE. 2020-04-03T21:28:44.37 0.1 undecidable manual P 101 12.3765 127 0.16 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEF1.HNE. ML:2.7 0.006195 1.24 AML other m 2020-04-03T21:28:46.69
IV.SEF1.HNN. ML:2.6 0.00508 0.18 AML other m 2020-04-03T21:28:46.18
IV.SNTG.HHE. ML:2.0 0.0009390000000000001 0.38 AML other m 2020-04-03T21:28:47.85
IV.SNTG.HNE. ML:2.0 0.0009705 0.4 AML other m 2020-04-03T21:28:47.86
IV.SNTG.HHN. ML:2.0 0.0010225 1.26 AML other m 2020-04-03T21:28:47.26
IV.SNTG.HNN. ML:2.0 0.0010085000000000003 1.38 AML other m 2020-04-03T21:28:47.27
IV.ATCC.EHE. ML:2.6 0.0034249999999999997 1.84 AML other m 2020-04-03T21:28:47.98
IV.ATCC.EHN. ML:2.4 0.002695 0.1 AML other m 2020-04-03T21:28:47.93
IV.CESI.HHE. ML:1.6 0.0003515 0.66 AML other m 2020-04-03T21:28:48.51
IV.CESI.HHN. ML:1.6 0.0003825 0.16 AML other m 2020-04-03T21:28:49.67
IV.FDMO.HHN. ML:1.8 0.000399 0.18 AML other m 2020-04-03T21:28:50.09
IV.FOSV.EHN. ML:1.8 0.000459 0.28 AML other m 2020-04-03T21:28:50.48
IV.FDMO.HHE. ML:1.8 0.0003635 0.14 AML other m 2020-04-03T21:28:50.63
IV.FOSV.EHE. ML:1.6 0.00029800000000000003 0.44 AML other m 2020-04-03T21:28:50.65
IV.EL6.EHE. ML:2.6 0.00209 0.14 AML other m 2020-04-03T21:28:52.53
IV.EL6.EHN. ML:2.5 0.0014100000000000002 0.5 AML other m 2020-04-03T21:28:52.81
IV.SSFR.HNE. ML:2.4 0.0011400000000000002 0.16 AML other m 2020-04-03T21:28:53.11
IV.CSP1.EHN. ML:1.8 0.000261 1.74 AML other m 2020-04-03T21:28:53.10
IV.ATFO.HHN. ML:1.5 0.000136 0.44 AML other m 2020-04-03T21:28:53.12
IV.SSFR.HHE. ML:2.3 0.000905 0.26 AML other m 2020-04-03T21:28:53.24
IV.ATFO.HHE. ML:1.6 0.00016849999999999998 0.3 AML other m 2020-04-03T21:28:53.28
IV.SSFR.HNN. ML:2.5 0.0012549999999999998 1.08 AML other m 2020-04-03T21:28:53.90
IV.SSFR.HHN. ML:2.3 0.0008774999999999999 0.2 AML other m 2020-04-03T21:28:53.37
IV.CSP1.EHE. ML:1.9 0.0003415 1.48 AML other m 2020-04-03T21:28:54.78
IV.NRCA.HHN. ML:2.2 0.0005845000000000001 1.5 AML other m 2020-04-03T21:28:54.89
IV.NRCA.HHE. ML:2.2 0.0004875 0.14 AML other m 2020-04-03T21:28:55.16
IV.ARVD.HHN. ML:1.7 0.0001595 0.5 AML other m 2020-04-03T21:28:55.41
IV.MOMA.HHN. ML:1.8 0.0002295 1.24 AML other m 2020-04-03T21:28:55.71
IV.MOMA.HNN. ML:1.9 0.000234 1.26 AML other m 2020-04-03T21:28:55.71
IV.ATVO.HHN. ML:1.5 0.0000944 0.26 AML other m 2020-04-03T21:28:55.69
IV.FRON.EHE. ML:2.0 0.000313 0.1 AML other m 2020-04-03T21:28:55.84
IV.ARVD.HHE. ML:1.9 0.00023799999999999998 0.78 AML other m 2020-04-03T21:28:55.53
IV.MOMA.HHE. ML:1.9 0.00028149999999999996 0.9 AML other m 2020-04-03T21:28:55.49
IV.ATVO.HHE. ML:1.5 0.0000887 0.18 AML other m 2020-04-03T21:28:56.10
IV.MOMA.HNE. ML:1.9 0.0002565 0.14 AML other m 2020-04-03T21:28:56.55
IV.GUMA.HHE. ML:2.2 0.0005654999999999999 0.88 AML other m 2020-04-03T21:28:56.56
IV.FRON.EHN. ML:2.0 0.000345 0.48 AML other m 2020-04-03T21:28:56.40
IV.SAP2.EHE. ML:1.8 0.00016450000000000001 0.84 AML other m 2020-04-03T21:28:58.03
IV.ATPI.EHN. ML:1.4 0.00006395000000000001 0.18 AML other m 2020-04-03T21:28:58.33
IV.ATPI.EHE. ML:1.4 0.000058450000000000005 0.44 AML other m 2020-04-03T21:28:58.57
IV.PIEI.HHE. ML:1.7 0.00014000000000000001 0.46 AML other m 2020-04-03T21:28:58.49
IV.PIEI.HHN. ML:1.5 0.0000809 0.26 AML other m 2020-04-03T21:28:58.79
IV.GUMA.HHN. ML:2.0 0.000334 0.32 AML other m 2020-04-03T21:28:59.03
IV.MPAG.EHE. ML:1.6 0.0001008 1.22 AML other m 2020-04-03T21:28:59.78
IV.MF5.EHN. ML:1.9 0.00019250000000000002 0.5 AML other m 2020-04-03T21:28:59.89
IV.NARO.HHN. ML:1.6 0.00009779999999999999 0.08 AML other m 2020-04-03T21:29:00.05
IV.MPAG.EHN. ML:1.6 0.00009279999999999999 0.16 AML other m 2020-04-03T21:29:00.17
IV.NARO.HHE. ML:1.7 0.00010899999999999999 0.08 AML other m 2020-04-03T21:29:00.13
IV.LNSS.HHE. ML:1.8 0.0001344 0.42 AML other m 2020-04-03T21:29:00.60
IV.APEC.HHN. ML:1.5 0.00007719999999999999 0.94 AML other m 2020-04-03T21:29:00.35
IV.SAP2.EHN. ML:2.6 0.0010314999999999999 0.52 AML other m 2020-04-03T21:29:00.84
IV.ARRO.EHE. ML:1.6 0.0000727 0.26 AML other m 2020-04-03T21:29:01.63
IV.CESX.HHE. ML:1.7 0.0001095 0.88 AML other m 2020-04-03T21:29:02.05
IV.LNSS.HHN. ML:1.8 0.000129 0.72 AML other m 2020-04-03T21:29:02.48
IV.CESX.HHN. ML:1.9 0.0001655 0.26 AML other m 2020-04-03T21:29:02.66
IV.ATMI.HHE. ML:1.5 0.0000849 0.4 AML other m 2020-04-03T21:29:03.89
IV.ARRO.EHN. ML:1.5 0.000060100000000000004 0.84 AML other m 2020-04-03T21:29:04.59
IV.MNTT.EHN. ML:2.2 0.00029600000000000004 0.44 AML other m 2020-04-03T21:29:04.94
IV.MNTT.EHE. ML:2.2 0.00029299999999999997 0.18 AML other m 2020-04-03T21:29:04.99
IV.ATMI.HHN. ML:1.5 0.00008499999999999999 0.38 AML other m 2020-04-03T21:29:06.05
IV.APEC.HHE. ML:1.6 0.0000784 1.6 AML other m 2020-04-03T21:29:08.09
IV.RM33.EHN. ML:1.6 0.0000648 1.7 AML other m 2020-04-03T21:29:09.00
IV.RM33.EHE. ML:1.6 0.0000653 1.34 AML other m 2020-04-03T21:29:10.92
IV.TERO.HHN. ML:1.4 0.0000327 0.22 AML other m 2020-04-03T21:29:10.59
IV.TERO.HHE. ML:1.4 0.000034049999999999994 0.12 AML other m 2020-04-03T21:29:10.59
IV.PARC.HHN. ML:1.4 0.0000387 1.26 AML other m 2020-04-03T21:29:12.84
IV.PARC.HHE. ML:1.3 0.00003095 1.42 AML other m 2020-04-03T21:29:12.93
IV.MF5.EHE. ML:2.0 0.00024250000000000004 1.58 AML other m 2020-04-03T21:29:15.86
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