Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 26-05-2020 and time 09:48:17 (Italy) in region 7 km E Norcia (PG)

A magnitude ML 1.6 earthquake occured in region: 7 km E Norcia (PG), on

  • 26-05-2020 07:48:17 (UTC)
  • 26-05-2020 09:48:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8010, 13.1790 at 11 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 7 4957 4957
Arquata del Tronto AP 10 1178 6135
Castelsantangelo sul Nera MC 11 281 6416
Accumoli RI 13 667 7083
Montegallo AP 14 523 7606
Preci PG 14 724 8330
Visso MC 16 1107 9437
Cascia PG 16 3217 12654
Ussita MC 16 444 13098
Montemonaco AP 16 604 13702
Acquasanta Terme AP 19 2916 16618

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
46 Km W of Teramo (54892 inhabitants)
51 Km NE of Terni (111501 inhabitants)
53 Km NW of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
93 Km W of Pescara (121014 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
95 Km NW of Chieti (51815 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km E of Viterbo (67173 inhabitants)
98 Km NE 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 1.6 2020-05-26
07:48:17		 42.8013 13.1788 11 2020-11-19
12:36:49		 Bollettino Sismico Italiano INGV 80407341
Reviewed
Rev100 		ML 1.6 2020-05-26
07:48:18		 42.8173 13.1622 10 2020-05-26
07:58:09		 Sala Sismica INGV-Roma 79578541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-26 07:48:17 ± 0.06
Latitude 42.8013 ± 0.0027
Longitude 13.1788 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80407341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 417
Semi-minor axis of confidence ellipse (meter) 330
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 70
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 6.07762
Number of stations at which the event was observed 40
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 79578541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-26 07:58:09

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 80407341
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-22 15:02:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OE.WTTA.HHZ. 2020-05-26T07:50:06.18 3.0 undecidable manual Sg 2.16 0
IV.MPNC.HHZ. 2020-05-26T07:49:52.45 3.0 negative manual P 548.0403 1.977 0
IV.CAGR.HHZ. 2020-05-26T07:49:51.10 3.0 undecidable manual P 585.4695 1.378 0
IX.CSG3.HNZ.01 2020-05-26T07:49:47.95 3.0 undecidable manual Sg 13.5 0
AC.KBN.HHZ. 2020-05-26T07:49:43.87 3.0 undecidable manual P 674.6136 -4.56 0
IV.CTI.HHZ. 2020-05-26T07:49:40.73 3.0 undecidable manual Sg 5.19 0
IV.ECTS.HHZ. 2020-05-26T07:49:40.36 3.0 undecidable manual P 569.9961 4.96 0
IV.VCRE.HHZ. 2020-05-26T07:49:36.38 3.0 undecidable manual Sg 11.47 0
IV.PAOL.HHZ. 2020-05-26T07:49:35.45 3.0 undecidable manual Sg 14.17 0
IV.SBPO.HNZ. 2020-05-26T07:49:23.01 3.0 undecidable manual Sg 2.46 0
IV.OVO.HHZ. 2020-05-26T07:49:23.14 3.0 undecidable manual Sn -1.34 0
IV.IMI.HHZ. 2020-05-26T07:49:11.12 3.0 undecidable manual P 443.6226 -8.56 0
IV.ROSPO.HHZ. 2020-05-26T07:49:11.47 3.0 undecidable manual Sg 8.65 0
IV.SLCN.HHZ. 2020-05-26T07:49:10.24 3.0 undecidable manual P 336.2079 3.93 0
GU.CARD.HHZ. 2020-05-26T07:49:08.85 3.0 undecidable manual Sn -2.82 0
IV.RMP.HHZ. 2020-05-26T07:48:58.94 3.0 undecidable manual Sn 2.85 0
OT.OT05.EHZ. 2020-05-26T07:48:54.56 3.0 positive manual P 235.986 0.72 0
IV.SRES.HHZ. 2020-05-26T07:48:50.48 3.0 undecidable manual S 3.38 0
IV.ASSB.HHZ. 2020-05-26T07:48:33.90 0.3 undecidable manual S 303 50.0166 50 0.22 68
IV.SAP2.EHN. 2020-05-26T07:48:31.20 1.0 undecidable manual S 29 37.3293 50 0.9 18
IV.MML1.EHE. 2020-05-26T07:48:30.50 0.3 undecidable manual S 334 38.5281 50 -0.1 71
IV.PF6.EHE. 2020-05-26T07:48:30.30 0.3 undecidable manual S 2 37.3293 50 0 73
IV.GUMA.HHZ. 2020-05-26T07:48:29.40 0.6 undecidable manual S 24 31.6461 50 0.62 42
IV.CESI.HHZ. 2020-05-26T07:48:28.70 0.3 undecidable manual S 315 31.746 50 -0.1 72
IV.CSP1.EHZ. 2020-05-26T07:48:28.80 0.3 undecidable manual S 4 32.2455 50 -0.15 71
IV.CESX.HHZ. 2020-05-26T07:48:27.85 3.0 undecidable manual P 52.8027 0.46 0
IV.MOMA.HHZ. 2020-05-26T07:48:27.07 0.3 undecidable manual P 271 49.5171 50 0.18 68
IV.FDMO.HHZ. 2020-05-26T07:48:27.20 0.3 undecidable manual S 344 27.1506 50 -0.37 68
IV.ASSB.HHZ. 2020-05-26T07:48:26.96 0.3 undecidable manual P 303 50.0166 50 0 71
IT.MTCL.HGN. 2020-05-26T07:48:26.80 0.3 undecidable manual S 326 25.8519 50 -0.43 68
IV.GIGS.HHN. 2020-05-26T07:48:26.66 0.3 undecidable manual P 140 50.3163 50 -0.34 66
IV.TERO.HHZ. 2020-05-26T07:48:25.20 0.3 undecidable manual P 120 39.9267 50 -0.2 69
IV.SAP2.EHN. 2020-05-26T07:48:25.30 0.3 undecidable manual P 29 37.3293 50 0.29 68
IV.MML1.EHE. 2020-05-26T07:48:25.26 0.1 undecidable manual P 334 38.5281 50 0.08 95
IV.RM33.EHZ. 2020-05-26T07:48:24.37 0.1 undecidable manual P 175 32.5452 50 0.1 96
IV.CSP1.EHZ. 2020-05-26T07:48:24.22 0.1 undecidable manual P 4 32.2455 50 -0.01 97
IV.MMO1.EHZ. 2020-05-26T07:48:24.20 0.3 undecidable manual S 48 16.1727 123 -0.31 71
IV.PF6.EHE. 2020-05-26T07:48:24.74 0.3 undecidable manual P 2 37.3293 50 -0.27 69
IV.GUMA.HHZ. 2020-05-26T07:48:24.44 0.3 undecidable manual P 24 31.6461 50 0.31 69
IV.CESI.HHZ. 2020-05-26T07:48:24.15 0.1 positive manual P 315 31.746 50 0.01 97
IV.CAMP.HHZ. 2020-05-26T07:48:24.51 0.6 undecidable manual P 147 34.9428 50 -0.13 47
IV.FDMO.HHZ. 2020-05-26T07:48:23.35 0.1 undecidable manual P 344 27.1506 50 -0.08 97
IT.MTCL.HGN. 2020-05-26T07:48:23.13 0.3 undecidable manual P 326 25.8519 50 -0.11 72
IV.MC2.EHZ. 2020-05-26T07:48:23.50 0.1 undecidable manual S 4 12.2766 131 0.09 99
IV.LNSS.HHZ. 2020-05-26T07:48:23.16 0.1 undecidable manual P 207 24.753 50 0.09 97
IV.FEMA.HNN. 2020-05-26T07:48:22.72 0.3 undecidable manual P 330 20.6682 50 0.28 70
IV.MMO1.EHZ. 2020-05-26T07:48:21.65 0.1 undecidable manual P 48 16.1727 123 -0.02 100
IV.NRCA.HNZ. 2020-05-26T07:48:21.90 0.1 undecidable manual S 304 6.3936 149 -0.18 98
IV.MC2.EHZ. 2020-05-26T07:48:21.25 0.1 negative manual P 4 12.2766 131 0.22 97
IV.MTRA.HNZ. 2020-05-26T07:48:21.99 0.1 undecidable manual P 106 18.3705 120 -0.05 99
IV.NRCA.HNZ. 2020-05-26T07:48:20.45 0.1 negative manual P 304 6.3936 149 0.19 98
IV.MURB.HHZ. 2020-05-26T07:48:17.35 3.0 undecidable manual P 73.7706 -9.99 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0.0 0.0043204385 0.1792 AML other m 2020-05-26T07:48:22.04
IV.NRCA.HNE. ML:0.0 0.004131166 0.1792 AML other m 2020-05-26T07:48:22.04
IV.NRCA.HHN. ML:0.0 0.003471502 0.0832 AML other m 2020-05-26T07:48:22.89
IV.NRCA.HNN. ML:0.0 0.0031049600000000004 0.096 AML other m 2020-05-26T07:48:22.88
IV.MTRA.EHE. ML:0.0 0.00044497724999999997 1.8784 AML other m 2020-05-26T07:48:25.95
IV.MTRA.HNE. ML:0.0 0.00046420325000000003 1.872 AML other m 2020-05-26T07:48:25.95
IV.MTRA.EHN. ML:0.0 0.0003178469 1.8592 AML other m 2020-05-26T07:48:26.94
IV.MTRA.HNN. ML:0.0 0.00029900745 1.8592 AML other m 2020-05-26T07:48:26.94
IV.LNSS.HHN. ML:0.0 0.00035729525 0.2368 AML other m 2020-05-26T07:48:27.25
IV.LNSS.HNN. ML:0.0 0.00032472415 0.1984 AML other m 2020-05-26T07:48:27.37
IV.FDMO.HHN. ML:0.0 0.00010006581 0.1984 AML other m 2020-05-26T07:48:27.63
IV.LNSS.HHE. ML:0.0 0.00028866595 0.256 AML other m 2020-05-26T07:48:27.37
IV.LNSS.HNE. ML:1.7 0.00029407959 0.1216 AML other m 2020-05-26T07:48:28.14
IV.FDMO.HHE. ML:0.0 0.00007706681499999999 0.1792 AML other m 2020-05-26T07:48:27.48
IV.CESI.HHE. ML:0.0 0.00022843255 1.8144 AML other m 2020-05-26T07:48:29.08
IV.CESI.HNE. ML:1.6 0.000193189705 0.16 AML other m 2020-05-26T07:48:29.00
IV.CESI.HHN. ML:0.0 0.00033320349999999997 0.1408 AML other m 2020-05-26T07:48:29.12
IV.CESI.HNN. ML:1.8 0.0003153828 0.1472 AML other m 2020-05-26T07:48:29.20
IV.RM33.EHN. ML:0.0 0.00010521489000000001 0.1216 AML other m 2020-05-26T07:48:29.61
IV.RM33.EHE. ML:0.0 0.00009092241000000001 0.1216 AML other m 2020-05-26T07:48:29.64
IV.CAMP.HHE. ML:0.0 0.00007073975 0.16 AML other m 2020-05-26T07:48:29.62
IV.GUMA.HHE. ML:0.0 0.00049910345 0.2368 AML other m 2020-05-26T07:48:29.82
IV.CSP1.EHE. ML:0.0 0.0000923721 0.2368 AML other m 2020-05-26T07:48:29.76
IV.GUMA.HHN. ML:0.0 0.0004192579 0.2816 AML other m 2020-05-26T07:48:29.80
IV.CSP1.EHN. ML:0.0 0.00010492865 0.2752 AML other m 2020-05-26T07:48:30.51
IV.CAMP.HHN. ML:0.0 0.000033010592499999995 0.2176 AML other m 2020-05-26T07:48:30.84
IV.TERO.HHN. ML:0.0 0.00014228884999999998 0.1408 AML other m 2020-05-26T07:48:31.59
IV.TERO.HHE. ML:0.0 0.000108375525 0.1792 AML other m 2020-05-26T07:48:32.16
IV.ASSB.HHE. ML:0.0 0.00009589835499999999 0.1856 AML other m 2020-05-26T07:48:34.49
IV.MOMA.HHE. ML:0.0 0.00012902005 0.16 AML other m 2020-05-26T07:48:35.42
IV.ASSB.HHN. ML:0.0 0.00007137135 0.1984 AML other m 2020-05-26T07:48:35.82
IV.MOMA.HHN. ML:0.0 0.000051401835 0.1792 AML other m 2020-05-26T07:48:36.77
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