Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 04-06-2020 and time 08:35:31 (UTC) in region 2 km E Norcia (PG)

A magnitude ML 1.5 earthquake occured in region: 2 km E Norcia (PG), on

  • 04-06-2020 08:35:31 (UTC)
  • 04-06-2020 10:35:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8010, 13.1210 at 10 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
Norcia PG 2 4957 4957
Castelsantangelo sul Nera MC 11 281 5238
Preci PG 11 724 5962
Cascia PG 13 3217 9179
Arquata del Tronto AP 15 1178 10357
Visso MC 15 1107 11464
Accumoli RI 16 667 12131
Ussita MC 16 444 12575
Cerreto di Spoleto PG 17 1075 13650
Poggiodomo PG 18 117 13767
Montegallo AP 18 523 14290
Sellano PG 19 1079 15369

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
69 Km SE of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
97 Km W of Pescara (121014 inhabitants)
99 Km NW of Chieti (51815 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 1.5 2020-06-04
08:35:31		 42.8007 13.1207 10 2020-11-19
12:36:47		 Bollettino Sismico Italiano INGV 79934091
Reviewed
Rev100 		ML 1.6 2020-06-04
08:35:31		 42.8013 13.134 10 2020-06-04
08:48:22		 Sala Sismica INGV-Roma 79886771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-04 08:35:31 ± 0.06
Latitude 42.8007 ± 0.0027
Longitude 13.1207 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 79934091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 437
Semi-minor axis of confidence ellipse (meter) 174
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
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) 0.03327
Epicentral distance of station farthest from the epicenter (degree) 0.52880
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 29
Type of magnitude ML
Reference to an origin 79934091
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-05 17:52:33

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 21
Type of magnitude ML
Reference to an origin 79886771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-04 08:48:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2020-06-04T08:35:47.08 0.3 undecidable manual S 306 46.1205 50 0.22 68
IV.TERO.HHZ. 2020-06-04T08:35:45.94 0.6 undecidable manual S 116 44.0226 50 -0.37 44
IV.SAP2.EHE. 2020-06-04T08:35:45.92 0.6 undecidable manual S 34 39.8268 50 0.73 40
IV.GUMA.HHZ. 2020-06-04T08:35:44.17 0.6 undecidable manual S 31 33.9438 50 0.58 43
IV.CAMP.HHZ. 2020-06-04T08:35:44.40 0.6 undecidable manual S 141 37.629 50 -0.19 47
IV.MML1.HNE. 2020-06-04T08:35:44.67 0.6 undecidable manual S 341 36.741 50 0.32 45
IV.PF6.EHN. 2020-06-04T08:35:44.75 0.6 undecidable manual S 9 37.8288 50 0.09 47
IV.CSP1.EHZ. 2020-06-04T08:35:43.45 0.6 undecidable manual S 12 33.0447 50 0.09 48
IV.RM33.EHZ. 2020-06-04T08:35:43.37 0.6 undecidable manual S 167 33.2445 50 -0.05 48
IV.EL6.EHZ. 2020-06-04T08:35:42.49 0.3 undecidable manual P 359 58.6968 50 0.05 69
IV.FDMO.HHZ. 2020-06-04T08:35:41.41 0.6 undecidable manual S 354 26.2515 50 -0.16 48
IV.CESI.HHZ. 2020-06-04T08:35:41.56 0.6 undecidable manual S 322 28.6491 50 -0.63 42
IV.OFFI.HHZ. 2020-06-04T08:35:41.66 0.3 undecidable manual P 72 48.3183 50 0.82 56
IV.ASSB.HHZ. 2020-06-04T08:35:40.30 0.1 undecidable manual P 306 46.1205 50 -0.21 91
IV.MOMA.HHN. 2020-06-04T08:35:40.93 0.6 undecidable manual P 271 44.8218 50 0.62 41
IV.T1299.HNN. 2020-06-04T08:35:40.70 0.6 undecidable manual S 144 22.6551 114 0.27 47
IT.MTCL.HGZ. 2020-06-04T08:35:40.65 0.6 undecidable manual S 335 23.5542 113 -0.07 49
IV.LNSS.HHZ. 2020-06-04T08:35:40.92 0.3 undecidable manual S 197 22.8549 113 0.42 68
IV.TERO.HHZ. 2020-06-04T08:35:40.14 0.3 undecidable manual P 116 44.0226 50 -0.05 71
IV.CESX.HHE. 2020-06-04T08:35:40.60 0.6 undecidable manual P 244 48.4182 50 -0.27 45
IV.MTRA.EHZ. 2020-06-04T08:35:40.13 0.6 undecidable manual S 102 22.9548 113 -0.4 46
IV.CAMP.HHZ. 2020-06-04T08:35:39.01 0.3 undecidable manual P 141 37.629 50 -0.19 70
IV.SAP2.EHE. 2020-06-04T08:35:39.85 0.1 undecidable manual P 34 39.8268 50 0.31 91
IV.FEMA.HNE. 2020-06-04T08:35:39.44 0.6 undecidable manual S 342 18.7701 118 0.22 48
IV.MMO1.EHZ. 2020-06-04T08:35:39.24 0.3 undecidable manual S 57 20.0688 116 -0.36 70
IV.MML1.HNE. 2020-06-04T08:35:38.86 0.1 undecidable manual P 341 36.741 50 -0.2 93
IV.RM33.EHZ. 2020-06-04T08:35:38.31 0.3 undecidable manual P 167 33.2445 50 -0.21 70
IV.PF6.EHN. 2020-06-04T08:35:38.87 0.1 undecidable manual P 9 37.8288 50 -0.37 90
IV.CSP1.EHZ. 2020-06-04T08:35:38.43 0.3 undecidable manual P 12 33.0447 50 -0.06 72
IV.GUMA.HHZ. 2020-06-04T08:35:38.77 0.3 undecidable manual P 31 33.9438 50 0.15 71
IV.CESI.HHZ. 2020-06-04T08:35:37.79 0.3 undecidable manual P 322 28.6491 50 -0.03 73
IV.MC2.EHZ. 2020-06-04T08:35:37.94 0.3 undecidable manual S 24 13.4754 126 0.29 71
IV.T1299.HNN. 2020-06-04T08:35:37.02 0.1 undecidable manual P 144 22.6551 114 0.22 95
IV.MMO1.EHZ. 2020-06-04T08:35:36.18 0.1 undecidable manual P 57 20.0688 116 -0.14 97
IV.MTRA.EHZ. 2020-06-04T08:35:36.63 0.3 undecidable manual P 102 22.9548 113 -0.22 71
IT.MTCL.HGZ. 2020-06-04T08:35:36.87 0.1 undecidable manual P 335 23.5542 113 -0.1 97
IV.LNSS.HHZ. 2020-06-04T08:35:36.88 0.3 undecidable manual P 197 22.8549 113 0.04 74
IV.FEMA.HNE. 2020-06-04T08:35:36.06 0.1 undecidable manual P 342 18.7701 118 -0.04 99
IV.FDMO.HHZ. 2020-06-04T08:35:36.88 0.3 undecidable manual P 354 26.2515 50 -0.57 65
IV.NRCA.HNZ. 2020-06-04T08:35:35.23 0.3 undecidable manual S 352 3.6963 160 -0.29 73
IV.MC2.EHZ. 2020-06-04T08:35:35.41 0.3 undecidable manual P 24 13.4754 126 0.22 72
IV.NRCA.HNZ. 2020-06-04T08:35:34.09 0.1 undecidable manual P 352 3.6963 160 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.7 0.0003497329 0.3008 AML other m 2020-06-04T08:35:40.36
IV.MTRA.EHN. ML:1.8 0.00035973695 0.2176 AML other m 2020-06-04T08:35:40.63
IV.MTRA.HNE. ML:1.8 0.00036722275000000004 0.2944 AML other m 2020-06-04T08:35:40.35
IV.MTRA.HNN. ML:1.7 0.00035378995 0.224 AML other m 2020-06-04T08:35:40.52
IV.LNSS.HNN. ML:1.9 0.00046478575 0.1728 AML other m 2020-06-04T08:35:41.04
IV.FDMO.HHN. ML:1.1 0.00006850612999999999 0.1792 AML other m 2020-06-04T08:35:41.56
IV.FDMO.HHE. ML:1.2 0.00009147625000000001 0.1792 AML other m 2020-06-04T08:35:41.86
IV.LNSS.HHE. ML:1.8 0.00041761559999999997 0.1216 AML other m 2020-06-04T08:35:41.02
IV.LNSS.HNE. ML:1.8 0.00037443824999999997 0.128 AML other m 2020-06-04T08:35:41.08
IV.LNSS.HHN. ML:1.9 0.00048404154999999997 0.2816 AML other m 2020-06-04T08:35:41.05
IV.CESI.HHN. ML:1.2 0.00007431887 0.32 AML other m 2020-06-04T08:35:42.41
IV.CESI.HHE. ML:1.1 0.00006571839 0.16 AML other m 2020-06-04T08:35:44.22
IV.RM33.EHE. ML:1.0 0.000040360519999999996 0.1408 AML other m 2020-06-04T08:35:44.42
IV.RM33.HNN. ML:1.4 0.00011309045000000001 0.3648 AML other m 2020-06-04T08:35:43.52
IV.RM33.HNE. ML:1.5 0.00013083255 1.8368 AML other m 2020-06-04T08:35:45.37
IV.RM33.EHN. ML:1.0 0.000041108930000000004 0.1408 AML other m 2020-06-04T08:35:44.53
IV.CSP1.EHN. ML:1.4 0.000110724475 0.1792 AML other m 2020-06-04T08:35:43.78
IV.CSP1.EHE. ML:1.5 0.00013208956 0.2624 AML other m 2020-06-04T08:35:45.16
IV.GUMA.HNE. ML:1.8 0.00025939584999999996 0.2688 AML other m 2020-06-04T08:35:44.73
IV.GUMA.HHE. ML:1.8 0.0002580441 0.256 AML other m 2020-06-04T08:35:44.59
IV.GUMA.HNN. ML:1.8 0.00023314645 0.4224 AML other m 2020-06-04T08:35:46.93
IV.GUMA.HHN. ML:1.7 0.00022916785 0.4032 AML other m 2020-06-04T08:35:47.89
IV.TERO.HHE. ML:1.2 0.00004976536500000001 0.1024 AML other m 2020-06-04T08:35:47.60
IV.TERO.HHN. ML:1.2 0.000057029515 0.0768 AML other m 2020-06-04T08:35:47.63
IV.ASSB.HHE. ML:1.1 0.000039131145 0.1408 AML other m 2020-06-04T08:35:49.97
IV.ASSB.HHN. ML:1.1 0.000035030784999999996 0.1792 AML other m 2020-06-04T08:35:48.28
IV.OFFI.HHE. ML:1.4 0.00006801898 0.48 AML other m 2020-06-04T08:35:56.66
IV.OFFI.HHN. ML:1.5 0.000092855205 0.32 AML other m 2020-06-04T08:35:50.31
IV.EL6.EHN. ML:1.4 0.000058340815499999995 0.224 AML other m 2020-06-04T08:35:52.01
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