Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 01-06-2020 and time 09:15:59 (UTC) in region 4 km E Norcia (PG)

A magnitude ML 0.5 earthquake occured in region: 4 km E Norcia (PG), on

  • 01-06-2020 09:15:59 (UTC)
  • 01-06-2020 11:15:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8090, 13.1400 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 4 4957 4957
Castelsantangelo sul Nera MC 10 281 5238
Preci PG 11 724 5962
Arquata del Tronto AP 13 1178 7140
Visso MC 14 1107 8247
Cascia PG 14 3217 11464
Ussita MC 15 444 11908
Accumoli RI 15 667 12575
Montegallo AP 16 523 13098
Cerreto di Spoleto PG 18 1075 14173
Montemonaco AP 18 604 14777
Sellano PG 20 1079 15856
Poggiodomo PG 20 117 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
49 Km NE of Terni (111501 inhabitants)
49 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
96 Km W of Pescara (121014 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km N of Tivoli (56533 inhabitants)
98 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
Reviewed
Rev100 		ML 0.5 2020-06-01
09:15:59		 42.809 13.1405 10 2020-06-01
09:23:21		 Sala Sismica INGV-Roma 79776131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-01 09:15:59 ± 0.05
Latitude 42.8090 ± 0.0027
Longitude 13.1405 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 79776131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 397
Semi-minor axis of confidence ellipse (meter) 275
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 81
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30487
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 79776131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-01 09:23:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CR.ZAG.BHZ. 2020-06-01T09:17:43.46 3.0 undecidable manual Sn -1.12 0
IV.TDS.HHZ. 2020-06-01T09:17:42.56 3.0 undecidable manual Sn -6.13 0
IV.LINA.HHZ. 2020-06-01T09:17:41.48 3.0 positive manual Pn -0.69 0
IV.FREG.EHZ. 2020-06-01T09:17:40.14 3.0 undecidable manual Sg 4.02 0
IT.LNT.HGZ. 2020-06-01T09:17:25.70 3.0 undecidable manual Pn 0.6 0
XK.SELL.HHZ. 2020-06-01T09:17:23.66 3.0 negative manual Pg 12.94 0
IX.STN3.HNZ.01 2020-06-01T09:17:22.23 3.0 undecidable manual Sn -1.81 0
IV.MTTG.HHZ. 2020-06-01T09:17:16.17 3.0 positive manual Pn -1.87 0
MN.PDG.HHZ. 2020-06-01T09:17:13.86 3.0 negative manual Pn 3.93 0
OT.TAR1.HHZ. 2020-06-01T09:17:05.40 3.0 positive manual Pg 5.41 0
IV.SARZ.HHZ. 2020-06-01T09:17:05.93 3.0 undecidable manual Pg 5.87 0
OX.CIMO.HHZ. 2020-06-01T09:17:01.09 3.0 negative manual Pg 2.96 0
GU.GRAM.HHZ. 2020-06-01T09:16:49.55 3.0 positive manual Pn 1.7 0
IV.PAOL.HHZ. 2020-06-01T09:16:32.92 3.0 undecidable manual Pn -2.42 0
IV.ROSPO.HHZ. 2020-06-01T09:16:24.19 3.0 undecidable manual P -2.9 0
IV.APEC.HNZ. 2020-06-01T09:16:18.92 3.0 undecidable manual P -2.74 0
IV.MURB.HHZ. 2020-06-01T09:16:13.23 3.0 negative manual P -3.25 0
IV.CSP1.EHZ. 2020-06-01T09:16:10.33 0.3 undecidable manual S 9 31.8459 50 -0.11 73
IV.RM33.EHZ. 2020-06-01T09:16:10.93 0.3 undecidable manual S 170 33.8439 50 -0.05 72
IV.T1299.HNZ. 2020-06-01T09:16:08.09 0.3 undecidable manual S 149 22.5552 114 0.19 72
IV.MTRA.EHE. 2020-06-01T09:16:07.51 0.3 undecidable manual S 105 21.6672 115 -0.09 72
IV.RM33.EHZ. 2020-06-01T09:16:06.00 0.3 undecidable manual P 170 33.8439 50 -0.04 72
IV.MMO1.EHZ. 2020-06-01T09:16:06.43 0.3 undecidable manual S 56 18.1707 119 -0.1 73
IV.MC2.EHZ. 2020-06-01T09:16:05.04 0.3 undecidable manual S 19 11.9769 130 0.27 72
IV.CSP1.EHZ. 2020-06-01T09:16:05.62 0.6 positive manual P 9 31.8459 50 -0.11 48
IV.T1299.HNZ. 2020-06-01T09:16:04.47 0.3 undecidable manual P 149 22.5552 114 0.2 72
IV.SMA1.EHN. 2020-06-01T09:16:04.74 0.3 undecidable manual P 141 25.3524 50 0 74
IV.MTRA.EHE. 2020-06-01T09:16:04.08 0.3 undecidable manual P 105 21.6672 115 -0.02 74
IV.LNSS.HNE. 2020-06-01T09:16:04.51 0.3 undecidable manual P 200 24.2535 50 -0.06 73
IV.MMO1.EHZ. 2020-06-01T09:16:03.42 0.3 undecidable manual P 56 18.1707 119 -0.05 74
IV.MC2.EHZ. 2020-06-01T09:16:02.68 0.6 positive manual P 19 11.9769 130 0.22 48
IV.NRCA.HHZ. 2020-06-01T09:16:02.83 0.1 undecidable manual S 322 3.4965 161 -0.21 97
IV.NRCA.HHZ. 2020-06-01T09:16:01.60 0.1 undecidable manual P 322 3.4965 161 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHE. ML:0.6 0.00001967615 0.2432 AML other m 2020-06-01T09:16:10.86
IV.CSP1.EHN. ML:0.5 0.000016178910000000003 0.2048 AML other m 2020-06-01T09:16:11.87
IV.RM33.EHE. ML:0.6 0.000013700355 0.4032 AML other m 2020-06-01T09:16:14.36
IV.RM33.EHN. ML:0.4 0.000011746420000000001 0.1152 AML other m 2020-06-01T09:16:11.52
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