Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 28-04-2020 and time 23:19:39 (Italy) in region 5 km S Campello sul Clitunno (PG)

A magnitude ML 1.8 earthquake occured in region: 5 km S Campello sul Clitunno (PG), on

  • 28-04-2020 21:19:39 (UTC)
  • 28-04-2020 23:19:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7770, 12.7690 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
Campello sul Clitunno PG 5 2442 2442
Spoleto PG 5 38218 40660
Sant'Anatolia di Narco PG 7 564 41224
Vallo di Nera PG 8 364 41588
Scheggino PG 9 461 42049
Castel Ritaldi PG 9 3278 45327
Trevi PG 11 8469 53796
Cerreto di Spoleto PG 13 1075 54871
Poggiodomo PG 15 117 54988
Montefalco PG 16 5679 60667
Giano dell'Umbria PG 17 3846 64513
Ferentillo TR 17 1913 66426
Sellano PG 18 1079 67505
Montefranco TR 20 1276 68781

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km S of Foligno (57155 inhabitants)
26 Km NE of Terni (111501 inhabitants)
48 Km SE of Perugia (166134 inhabitants)
67 Km NE of Viterbo (67173 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
78 Km W of Teramo (54892 inhabitants)
86 Km N of Guidonia Montecelio (88673 inhabitants)
90 Km N of Tivoli (56533 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 2020-04-28
21:19:39		 42.7767 12.7692 8 2020-07-18
21:08:39		 Bollettino Sismico Italiano INGV 79932491
Reviewed
Rev100 		ML 1.8 2020-04-28
21:19:39		 42.7802 12.7455 11 2020-04-28
21:25:34		 Sala Sismica INGV-Roma 78653711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-28 21:19:39 ± 0.04
Latitude 42.7767 ± 0.0018
Longitude 12.7692 ± 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 79932491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 233
Semi-minor axis of confidence ellipse (meter) 225
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 274
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 70
Number of defining phases 70
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.14839
Epicentral distance of station farthest from the epicenter (degree) 2.03966
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 39
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 64
Type of magnitude ML
Reference to an origin 79932491
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-05 16:42:24

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 78653711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-28 21:25:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VENT.EHZ. 2020-04-28T21:20:24.83 0.1 undecidable manual P 226.4067 1.025 0
IV.TERO.HHZ. 2020-04-28T21:20:01.42 0.3 undecidable manual S 104 70.1742 50 0.25 65
IV.FIAM.HHZ. 2020-04-28T21:19:59.04 0.3 undecidable manual S 153 63.1923 50 -0.28 66
IV.MF5.EHZ. 2020-04-28T21:19:59.43 0.6 undecidable manual S 67 60.7947 50 0.75 38
IV.GUMA.HHZ. 2020-04-28T21:19:58.08 0.6 undecidable manual S 55 55.8996 50 0.71 39
IV.MURB.HHZ. 2020-04-28T21:19:58.30 0.6 undecidable manual S 340 57.498 50 0.5 42
IT.MMP1.HGE. 2020-04-28T21:19:58.37 0.6 undecidable manual S 182 58.497 50 0.29 44
IV.MGAB.HHZ. 2020-04-28T21:19:57.59 0.6 undecidable manual S 286 55.5 50 0.32 44
IV.MDAR.HNN. 2020-04-28T21:19:57.19 0.3 undecidable manual S 33 55.2003 50 0 71
IV.SNTG.HHZ. 2020-04-28T21:19:57.65 0.6 undecidable manual S 15 54.9006 50 0.55 42
IV.PF6.EHN. 2020-04-28T21:19:56.56 0.6 undecidable manual S 41 52.9026 50 -0.01 47
IV.MMO1.EHZ. 2020-04-28T21:19:55.30 0.6 undecidable manual S 73 47.3193 50 0.21 46
IV.SMA1.EHZ. 2020-04-28T21:19:55.97 0.6 undecidable manual S 109 48.9177 50 0.46 43
IV.ATCC.EHZ. 2020-04-28T21:19:55.22 0.6 undecidable manual S 347 46.5201 50 0.35 45
IV.CERT.HHZ. 2020-04-28T21:19:55.07 0.6 undecidable manual P 169 93.4398 50 -0.44 40
IV.RM33.EHZ. 2020-04-28T21:19:55.00 0.6 undecidable manual S 129 46.9197 50 0.03 48
IV.CSP1.EHZ. 2020-04-28T21:19:55.71 0.3 undecidable manual S 45 49.7169 50 -0.02 71
IV.ARVD.HHZ. 2020-04-28T21:19:54.02 1.0 undecidable manual P 10 81.252 50 0.39 21
IV.T1299.EHE. 2020-04-28T21:19:54.54 0.6 undecidable manual S 111 44.7219 50 0.16 47
IV.SEF1.HNN. 2020-04-28T21:19:54.59 0.6 undecidable manual S 19 43.5231 50 0.52 43
IV.FIU1.HNZ. 2020-04-28T21:19:54.74 0.6 undecidable manual S 16 47.5191 50 -0.41 44
IV.MNTT.EHZ. 2020-04-28T21:19:53.29 1.0 undecidable manual P 64 74.2701 50 0.74 19
IV.MML1.HNE. 2020-04-28T21:19:53.10 0.6 undecidable manual S 24 40.8258 50 -0.25 46
IV.FDMO.HHZ. 2020-04-28T21:19:52.35 0.6 undecidable manual S 42 38.7279 50 -0.44 44
IV.MMUR.HNZ. 2020-04-28T21:19:52.65 1.0 undecidable manual P 14 76.0683 50 -0.19 22
IV.MC2.EHZ. 2020-04-28T21:19:52.44 0.6 undecidable manual S 66 37.2294 50 0.04 48
IV.TERO.HHZ. 2020-04-28T21:19:51.68 0.1 undecidable manual P 104 70.1742 50 -0.24 87
IV.EL6.EHZ. 2020-04-28T21:19:51.37 0.1 undecidable manual P 24 66.9774 50 -0.07 91
IV.FIAM.HHZ. 2020-04-28T21:19:50.46 0.3 undecidable manual P 153 63.1923 50 -0.39 64
IV.MDAR.HNN. 2020-04-28T21:19:50.35 0.6 undecidable manual P 33 55.2003 50 0.73 39
IV.FEMA.HNE. 2020-04-28T21:19:50.29 0.6 undecidable manual S 48 30.747 104 0 49
IT.MTCL.HGZ. 2020-04-28T21:19:50.12 0.6 undecidable manual S 38 30.5472 104 -0.1 48
IV.MF5.EHZ. 2020-04-28T21:19:50.75 0.3 undecidable manual P 67 60.7947 50 0.27 66
IT.MMP1.HGE. 2020-04-28T21:19:50.28 1.0 undecidable manual P 182 58.497 50 0.15 23
IV.SRES.HHZ. 2020-04-28T21:19:50.93 0.1 undecidable manual P 200 63.492 50 0.03 92
IV.MURB.HHZ. 2020-04-28T21:19:49.95 1.0 undecidable manual P 340 57.498 50 -0.02 23
IV.SNTG.HHZ. 2020-04-28T21:19:49.35 0.3 undecidable manual P 15 54.9006 50 -0.22 68
IV.CESI.HHZ. 2020-04-28T21:19:49.29 0.6 undecidable manual S 23 27.6501 106 0.04 49
IT.TRN1.HGN. 2020-04-28T21:19:49.04 0.6 undecidable manual S 203 26.2515 107 0.26 47
IV.MGAB.HHZ. 2020-04-28T21:19:49.61 1.0 undecidable manual P 286 55.5 50 -0.06 23
IV.NRCA.HHZ. 2020-04-28T21:19:49.90 0.6 undecidable manual S 77 28.749 105 0.26 47
IV.GUMA.HHZ. 2020-04-28T21:19:49.79 0.1 undecidable manual P 55 55.8996 50 0.07 93
IV.ATTE.HHN. 2020-04-28T21:19:49.59 0.6 undecidable manual P 324 57.5979 50 -0.4 43
IV.RM33.EHZ. 2020-04-28T21:19:48.01 0.1 undecidable manual P 129 46.9197 50 -0.33 89
IV.CSP1.EHZ. 2020-04-28T21:19:48.55 0.1 undecidable manual P 45 49.7169 50 -0.23 91
IV.FIU1.HNZ. 2020-04-28T21:19:48.74 0.1 undecidable manual P 16 47.5191 50 0.3 90
IV.PF6.EHN. 2020-04-28T21:19:48.99 0.1 undecidable manual P 41 52.9026 50 -0.27 90
IV.MMO1.EHZ. 2020-04-28T21:19:48.14 0.1 undecidable manual P 73 47.3193 50 -0.27 91
IV.SMA1.EHZ. 2020-04-28T21:19:48.52 0.1 undecidable manual P 109 48.9177 50 -0.12 93
IV.ATCC.EHZ. 2020-04-28T21:19:47.82 0.1 undecidable manual P 347 46.5201 50 -0.46 87
IV.SEF1.HNN. 2020-04-28T21:19:47.62 1.0 undecidable manual P 19 43.5231 50 -0.21 23
IV.CESX.HHZ. 2020-04-28T21:19:47.76 0.6 undecidable manual S 219 23.8539 108 -0.24 48
IT.FOPC.HGN. 2020-04-28T21:19:47.71 0.6 undecidable manual S 346 22.0668 110 0.29 47
IV.T1299.EHE. 2020-04-28T21:19:47.86 0.1 undecidable manual P 111 44.7219 50 -0.14 93
IV.MML1.HNE. 2020-04-28T21:19:47.16 0.1 undecidable manual P 24 40.8258 50 -0.25 92
IV.ARRO.EHZ. 2020-04-28T21:19:47.83 0.6 undecidable manual S 181 21.867 110 0.47 45
IV.MC2.EHZ. 2020-04-28T21:19:46.66 0.1 undecidable manual P 66 37.2294 50 -0.2 94
IV.FDMO.HHZ. 2020-04-28T21:19:46.75 0.6 negative manual P 42 38.7279 50 -0.33 45
IV.NRCA.HHZ. 2020-04-28T21:19:45.22 0.1 negative manual P 77 28.749 105 -0.04 98
IV.MOMA.HHZ. 2020-04-28T21:19:45.52 0.6 undecidable manual S 281 16.4724 116 -0.1 50
IV.FEMA.HNE. 2020-04-28T21:19:45.61 0.3 undecidable manual P 48 30.747 104 -0.03 74
IT.MTCL.HGZ. 2020-04-28T21:19:45.54 0.1 undecidable manual P 38 30.5472 104 -0.06 98
IT.GNU.HGZ. 2020-04-28T21:19:45.84 0.6 undecidable manual S 281 16.4724 116 0.22 48
IV.CESI.HHZ. 2020-04-28T21:19:45.00 0.1 positive manual P 23 27.6501 106 -0.04 98
IT.TRN1.HGN. 2020-04-28T21:19:45.35 0.3 undecidable manual P 203 26.2515 107 0.58 65
IV.ARRO.EHZ. 2020-04-28T21:19:44.08 0.3 positive manual P 181 21.867 110 0.14 73
IV.CESX.HHZ. 2020-04-28T21:19:44.15 0.3 undecidable manual P 219 23.8539 108 -0.17 72
IT.FOPC.HGN. 2020-04-28T21:19:43.91 0.1 undecidable manual P 346 22.0668 110 -0.07 99
IT.GNU.HGZ. 2020-04-28T21:19:42.92 0.3 undecidable manual P 281 16.4724 116 -0.02 76
IV.MOMA.HHZ. 2020-04-28T21:19:42.89 0.1 negative manual P 281 16.4724 116 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MGAB.HNE. ML:0.0 0.00012519665000000003 0.2176 AML other m 2020-04-28T21:19:58.57
IV.MGAB.HHE. ML:0.0 0.00012492532500000002 0.2048 AML other m 2020-04-28T21:19:58.84
IV.MURB.HHN. ML:0.0 0.0004995907 0.3072 AML other m 2020-04-28T21:20:00.12
IV.MGAB.HNN. ML:0.0 0.00015715155 0.4736 AML other m 2020-04-28T21:20:02.04
IV.MGAB.HHN. ML:0.0 0.00016179434999999997 0.448 AML other m 2020-04-28T21:20:02.04
IV.ARVD.HHE. ML:0.0 0.00002244941 0.2048 AML other m 2020-04-28T21:20:15.64
IV.ARVD.HHN. ML:0.0 0.00002137237 0.2048 AML other m 2020-04-28T21:20:06.21
IV.MNTT.EHE. ML:0.0 0.00017 1.6 AML other m 2020-04-28T21:20:07.16
IV.MNTT.EHN. ML:0.0 0.0001515 0.3 AML other m 2020-04-28T21:20:10.70
IV.MOMA.HNE. ML:2.5 0.0028519385 0.256 AML other m 2020-04-28T21:19:46.02
IV.MOMA.HHE. ML:2.5 0.0030447945 0.2432 AML other m 2020-04-28T21:19:46.01
IV.MOMA.HNN. ML:2.3 0.001802452 0.1664 AML other m 2020-04-28T21:19:45.82
IV.MOMA.HHN. ML:2.3 0.0017831375000000001 0.1792 AML other m 2020-04-28T21:19:45.81
IV.ARRO.EHE. ML:1.6 0.00027638799999999997 0.2816 AML other m 2020-04-28T21:19:48.06
IV.ARRO.EHN. ML:1.6 0.0002558192 0.2432 AML other m 2020-04-28T21:19:49.34
IV.CESX.HHN. ML:2.1 0.000785339 0.4096 AML other m 2020-04-28T21:19:49.55
IV.CESX.HHE. ML:1.8 0.0003643931 0.2944 AML other m 2020-04-28T21:19:48.81
IV.CESI.HHE. ML:1.8 0.00031907385 0.1408 AML other m 2020-04-28T21:19:49.50
IV.CESI.HHN. ML:2.0 0.000527832 0.128 AML other m 2020-04-28T21:19:49.96
IV.CESI.HNN. ML:2.0 0.00050952455 0.1408 AML other m 2020-04-28T21:19:49.59
IV.CESI.HNE. ML:1.7 0.000292241 0.128 AML other m 2020-04-28T21:19:49.50
IV.NRCA.HNE. ML:2.0 0.000527888 0.1536 AML other m 2020-04-28T21:19:51.07
IV.NRCA.HHN. ML:1.8 0.0003316926 0.1024 AML other m 2020-04-28T21:19:50.85
IV.NRCA.HNN. ML:1.7 0.00028568990000000003 0.0896 AML other m 2020-04-28T21:19:50.85
IV.NRCA.HHE. ML:2.0 0.0005271806 0.1408 AML other m 2020-04-28T21:19:51.07
IV.FDMO.HHN. ML:1.7 0.0001765115 0.1792 AML other m 2020-04-28T21:19:53.24
IV.FDMO.HHE. ML:1.8 0.00021087385 0.1152 AML other m 2020-04-28T21:19:53.31
IV.ATCC.EHN. ML:1.8 0.00017002748500000002 0.2304 AML other m 2020-04-28T21:19:56.63
IV.ATCC.EHE. ML:2.0 0.0002615217 0.1408 AML other m 2020-04-28T21:19:55.81
IV.RM33.EHE. ML:1.8 0.0001594132 0.2048 AML other m 2020-04-28T21:19:56.68
IV.RM33.HNE. ML:1.8 0.0001630423 0.192 AML other m 2020-04-28T21:19:56.79
IV.RM33.HNN. ML:1.8 0.00017369865000000002 0.8576 AML other m 2020-04-28T21:19:54.82
IV.RM33.EHN. ML:1.6 0.000116490975 0.2304 AML other m 2020-04-28T21:19:56.72
IV.SMA1.EHN. ML:1.8 0.0001527474 0.2944 AML other m 2020-04-28T21:19:57.81
IV.SMA1.EHE. ML:1.9 0.00019937195000000002 0.2688 AML other m 2020-04-28T21:19:58.52
IV.CSP1.EHN. ML:2.0 0.0002391754 0.32 AML other m 2020-04-28T21:19:56.04
IV.CSP1.EHE. ML:1.9 0.00022684594999999999 0.1536 AML other m 2020-04-28T21:19:56.60
IV.SNTG.HNE. ML:1.6 0.00010079618000000001 0.448 AML other m 2020-04-28T21:19:57.72
IV.SNTG.HHE. ML:1.4 0.000062325955 0.1152 AML other m 2020-04-28T21:19:58.73
IV.SNTG.HHN. ML:1.4 0.00005801932 0.1408 AML other m 2020-04-28T21:19:59.28
IV.SNTG.HNN. ML:1.6 0.00010448576000000001 1.4208 AML other m 2020-04-28T21:19:58.53
IV.GUMA.HHN. ML:1.8 0.00013412035 0.3584 AML other m 2020-04-28T21:20:01.17
IV.GUMA.HNE. ML:1.9 0.000170456145 0.2688 AML other m 2020-04-28T21:20:00.79
IV.GUMA.HHE. ML:1.9 0.0001859277 0.2304 AML other m 2020-04-28T21:19:58.57
IV.GUMA.HNN. ML:1.9 0.000165842 0.3328 AML other m 2020-04-28T21:20:00.70
IV.MURB.HHE. ML:2.3 0.00045637269999999994 0.2816 AML other m 2020-04-28T21:19:59.29
IV.MURB.HNE. ML:2.3 0.00042682880000000003 0.2432 AML other m 2020-04-28T21:19:59.30
IV.MURB.HNN. ML:2.4 0.000488318 0.3072 AML other m 2020-04-28T21:19:59.97
IV.FIAM.HHE. ML:1.1 0.000025038845 0.256 AML other m 2020-04-28T21:20:00.68
IV.FIAM.HHN. ML:1.0 0.000022217975 0.448 AML other m 2020-04-28T21:20:03.92
IV.MF5.EHE. ML:0.0 0.00007466390000000001 0.6272 AML other m 2020-04-28T21:20:02.57
IV.MF5.EHN. ML:0.0 0.000047470969699999996 0.4352 AML other m 2020-04-28T21:20:02.69
IV.SRES.HHE. ML:1.3 0.00003485009 0.2944 AML other m 2020-04-28T21:20:00.92
IV.SRES.HHN. ML:1.4 0.00004531846 0.3584 AML other m 2020-04-28T21:20:01.84
IV.EL6.EHE. ML:2.0 0.00016371514999999998 0.3456 AML other m 2020-04-28T21:20:02.77
IV.EL6.EHN. ML:1.9 0.0001466355 0.192 AML other m 2020-04-28T21:20:02.85
IV.TERO.HNN. ML:2.0 0.00017275935 1.2032 AML other m 2020-04-28T21:20:02.97
IV.TERO.HHN. ML:1.3 0.00003622982 0.1024 AML other m 2020-04-28T21:20:02.76
IV.TERO.HNE. ML:1.7 0.00008452636499999999 1.1776 AML other m 2020-04-28T21:20:03.08
IV.TERO.HHE. ML:1.3 0.000033335860000000004 0.1664 AML other m 2020-04-28T21:20:05.34
IV.MMUR.HNE. ML:2.1 0.0001836885 0.3712 AML other m 2020-04-28T21:20:06.65
IV.CERT.HHN. ML:0.0 0.000018892375 0.4992 AML other m 2020-04-28T21:20:11.84
IV.CERT.HHE. ML:0.0 0.00003049826 0.448 AML other m 2020-04-28T21:20:17.79
IV.FIAM.HNN. ML:1.7 0.00009774194 1.1008 AML other m 2020-04-28T21:19:59.92
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