Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 07-05-2020 and time 09:31:25 (Italy) in region 5 km NE Norcia (PG)

A magnitude ML 1.4 earthquake occured in region: 5 km NE Norcia (PG), on

  • 07-05-2020 07:31:25 (UTC)
  • 07-05-2020 09:31:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8320, 13.1170 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 5 4957 4957
Castelsantangelo sul Nera MC 8 281 5238
Preci PG 8 724 5962
Visso MC 11 1107 7069
Ussita MC 13 444 7513
Cascia PG 15 3217 10730
Arquata del Tronto AP 16 1178 11908
Cerreto di Spoleto PG 16 1075 12983
Sellano PG 17 1079 14062
Montegallo AP 18 523 14585
Accumoli RI 19 667 15252
Montemonaco AP 19 604 15856
Poggiodomo PG 20 117 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
49 Km NE of Terni (111501 inhabitants)
52 Km W of Teramo (54892 inhabitants)
58 Km NW of L'Aquila (69753 inhabitants)
67 Km E of Perugia (166134 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
93 Km SW of Ancona (100861 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km W of Pescara (121014 inhabitants)
100 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 1.4 2020-05-07
07:31:25		 42.8322 13.1167 10 2020-11-19
12:36:46		 Bollettino Sismico Italiano INGV 79660301
Reviewed
Rev100 		ML 1.4 2020-05-07
07:31:25		 42.8283 13.1122 9 2020-05-07
07:37:32		 Sala Sismica INGV-Roma 78911001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-07 07:31:25 ± 0.04
Latitude 42.8322 ± 0.0027
Longitude 13.1167 ± 0.0037
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 79660301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 268
Semi-minor axis of confidence ellipse (meter) 223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.49732
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 78911001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-07 07:37:32

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 79660301
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-05-28 15:36:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SEI.HHZ. 2020-05-07T07:32:20.22 3.0 undecidable manual Sn 1.93 0
IV.ROSPO.HHZ. 2020-05-07T07:32:14.84 3.0 undecidable manual S 4.04 0
IV.PAOL.HHZ. 2020-05-07T07:31:58.56 3.0 undecidable manual Pn -0.54 0
IV.VAGA.HHZ. 2020-05-07T07:31:53.61 3.0 undecidable manual Pn 0.8 0
TV.SF01.EHZ. 2020-05-07T07:31:47.77 3.0 undecidable manual P 1.81 0
IV.PE3.EHZ. 2020-05-07T07:31:45.88 3.0 undecidable manual P 1.73 0
IV.EL6.EHZ. 2020-05-07T07:31:42.88 0.6 undecidable manual S 359 55.2003 50 -0.03 47
IV.CESX.HHE. 2020-05-07T07:31:41.55 0.6 undecidable manual S 240 49.8168 50 0.07 47
IV.TERO.HHZ. 2020-05-07T07:31:40.29 0.3 undecidable manual S 120 46.0206 50 -0.18 70
IV.ASSB.HHZ. 2020-05-07T07:31:39.69 0.6 undecidable manual S 302 43.9227 50 -0.22 46
IV.SAP2.EHE. 2020-05-07T07:31:38.40 0.6 undecidable manual S 38 37.2294 50 0.28 46
IV.CAMP.HHE. 2020-05-07T07:31:38.84 0.3 undecidable manual S 144 40.626 50 -0.19 71
IV.MF5.EHZ. 2020-05-07T07:31:37.25 0.6 undecidable manual S 58 32.745 50 0.31 46
IV.RM33.EHZ. 2020-05-07T07:31:37.87 0.6 undecidable manual S 167 36.741 50 -0.12 48
IV.GUMA.HHZ. 2020-05-07T07:31:36.35 0.6 undecidable manual S 35 31.1466 50 -0.14 48
IV.CSP1.EHZ. 2020-05-07T07:31:35.91 0.3 undecidable manual S 14 29.6481 50 -0.2 72
IV.SMA1.EHN. 2020-05-07T07:31:35.79 0.3 undecidable manual S 141 28.6491 50 -0.03 74
IV.EL6.EHZ. 2020-05-07T07:31:35.67 0.3 undecidable manual P 359 55.2003 50 0.14 69
IV.CESX.HHE. 2020-05-07T07:31:35.13 0.1 undecidable manual P 240 49.8168 50 0.43 88
IT.TRN1.HGZ. 2020-05-07T07:31:34.42 0.6 undecidable manual P 232 48.9177 50 -0.15 47
IV.MTRA.EHZ. 2020-05-07T07:31:34.33 0.6 undecidable manual S 110 24.2535 112 -0.19 48
IV.CESI.HHZ. 2020-05-07T07:31:34.75 0.6 undecidable manual S 318 25.752 111 -0.25 48
IT.GNU.HGE. 2020-05-07T07:31:34.37 0.1 undecidable manual P 266 44.622 50 0.47 88
IV.FDMO.HHZ. 2020-05-07T07:31:33.69 0.3 undecidable manual S 354 22.755 113 -0.35 70
IV.SAP2.EHE. 2020-05-07T07:31:33.16 0.3 undecidable manual P 38 37.2294 50 0.4 68
IV.ASSB.HHZ. 2020-05-07T07:31:33.56 0.3 undecidable manual P 302 43.9227 50 -0.23 70
IV.CAMP.HHE. 2020-05-07T07:31:33.34 0.6 undecidable manual P 144 40.626 50 0.06 48
IV.MOMA.HNZ. 2020-05-07T07:31:33.76 0.1 undecidable manual P 266 44.622 50 -0.14 94
IV.TERO.HHZ. 2020-05-07T07:31:33.89 0.3 undecidable manual P 120 46.0206 50 -0.22 69
IT.MTCL.HGZ. 2020-05-07T07:31:32.93 0.6 undecidable manual S 332 20.2686 116 -0.33 47
IV.MMO1.EHZ. 2020-05-07T07:31:32.64 0.3 undecidable manual S 66 18.6702 118 -0.1 75
IV.RM33.EHZ. 2020-05-07T07:31:32.59 0.6 undecidable manual P 167 36.741 50 -0.1 48
IV.MF5.EHZ. 2020-05-07T07:31:31.97 0.6 undecidable manual P 58 32.745 50 -0.11 49
IV.CSP1.EHZ. 2020-05-07T07:31:31.60 0.3 negative manual P 14 29.6481 50 0 75
IV.GUMA.HHZ. 2020-05-07T07:31:31.92 0.3 undecidable manual P 35 31.1466 50 0.1 73
IV.FEMA.HNE. 2020-05-07T07:31:31.68 0.6 undecidable manual S 339 15.3735 122 -0.09 50
IV.SMA1.EHN. 2020-05-07T07:31:31.23 0.6 undecidable manual P 141 28.6491 50 -0.2 48
IV.MTRA.EHZ. 2020-05-07T07:31:30.55 0.3 undecidable manual P 110 24.2535 112 -0.13 74
IV.CESI.HHZ. 2020-05-07T07:31:30.89 0.1 positive manual P 318 25.752 111 -0.07 99
IV.FDMO.HHZ. 2020-05-07T07:31:30.37 0.3 negative manual P 354 22.755 113 -0.04 75
IV.MC2.EHZ. 2020-05-07T07:31:30.69 0.3 undecidable manual S 34 10.5783 133 0.26 73
IV.FEMA.HNE. 2020-05-07T07:31:29.25 0.3 undecidable manual P 339 15.3735 122 0.16 74
IT.MTCL.HGZ. 2020-05-07T07:31:29.83 0.1 undecidable manual P 332 20.2686 116 -0.12 99
IV.MMO1.EHZ. 2020-05-07T07:31:29.73 0.1 positive manual P 66 18.6702 118 0.08 100
IV.MC2.EHZ. 2020-05-07T07:31:28.66 0.1 undecidable manual P 34 10.5783 133 0.34 96
IV.NRCA.HNZ. 2020-05-07T07:31:28.70 0.6 undecidable manual S 306 0.1998 179 -0.13 51
IV.NRCA.HNZ. 2020-05-07T07:31:27.61 0.3 undecidable manual P 306 0.1998 179 0.22 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.1 0.0000811 1.56 AML other m 2020-05-07T07:31:34.96
IV.FDMO.HHE. ML:1.1 0.00008575 1.24 AML other m 2020-05-07T07:31:34.31
IV.MTRA.EHN. ML:1.7 0.0002825 0.82 AML other m 2020-05-07T07:31:34.92
IV.MTRA.EHE. ML:1.6 0.000264 0.38 AML other m 2020-05-07T07:31:34.61
IV.CESI.HHN. ML:1.6 0.00025 0.24 AML other m 2020-05-07T07:31:35.17
IV.CESI.HHE. ML:1.4 0.000141 0.26 AML other m 2020-05-07T07:31:35.25
IV.GUMA.HHN. ML:1.5 0.0001625 0.64 AML other m 2020-05-07T07:31:37.05
IV.GUMA.HHE. ML:1.5 0.000157 0.52 AML other m 2020-05-07T07:31:40.99
IV.ASSB.HHN. ML:1.2 0.000050549999999999995 0.2 AML other m 2020-05-07T07:31:41.01
IV.TERO.HHE. ML:1.1 0.000041 0.9 AML other m 2020-05-07T07:31:41.03
IV.ASSB.HHE. ML:1.2 0.00005165 0.6 AML other m 2020-05-07T07:31:41.57
IV.TERO.HHN. ML:1.2 0.0000497 0.6 AML other m 2020-05-07T07:31:43.40
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