Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 28-06-2020 and time 17:43:10 (UTC) in region 4 km E Norcia (PG)

A magnitude ML 1.2 earthquake occured in region: 4 km E Norcia (PG), on

  • 28-06-2020 17:43:10 (UTC)
  • 28-06-2020 19:43:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8080, 13.1320 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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
Cascia PG 14 3217 9179
Arquata del Tronto AP 14 1178 10357
Visso MC 14 1107 11464
Ussita MC 15 444 11908
Accumoli RI 16 667 12575
Montegallo AP 17 523 13098
Cerreto di Spoleto PG 18 1075 14173
Montemonaco AP 19 604 14777
Sellano PG 19 1079 15856
Poggiodomo PG 19 117 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
69 Km E of Perugia (166134 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km W of Pescara (121014 inhabitants)
98 Km N of Tivoli (56533 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
Reviewed
Rev100 		ML 1.2 2020-06-28
17:43:10		 42.8077 13.1323 10 2020-06-28
17:51:08		 Sala Sismica INGV-Roma 80594541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-28 17:43:10 ± 0.05
Latitude 42.8077 ± 0.0027
Longitude 13.1323 ± 0.0061
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 80594541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 487
Semi-minor axis of confidence ellipse (meter) 143
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
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 26
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
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 16
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 80594541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-28 17:51:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RIBO.EHZ.01 2020-06-28T17:44:03.18 3.0 undecidable manual Sg 6.66 0
IV.LRP.EHZ. 2020-06-28T17:43:47.98 3.0 undecidable manual S -0.25 0
IV.CSP1.EHZ. 2020-06-28T17:43:21.33 0.6 undecidable manual S 11 32.0457 50 0.09 47
IV.RM33.EHZ. 2020-06-28T17:43:21.63 0.6 undecidable manual S 169 33.8439 50 -0.07 47
IV.CESI.HHZ. 2020-06-28T17:43:20.30 0.6 undecidable manual S 320 28.6491 50 -0.02 48
IV.ATCC.EHZ. 2020-06-28T17:43:20.82 3.0 negative manual P 0.22 0
IV.SMA1.EHZ. 2020-06-28T17:43:19.41 0.6 undecidable manual S 140 25.6521 50 -0.12 47
IV.FDMO.HHZ. 2020-06-28T17:43:19.55 0.6 undecidable manual S 352 25.6521 50 0.03 48
IV.ASSB.HHZ. 2020-06-28T17:43:18.66 3.0 negative manual P -0.09 0
IV.T1299.EHZ. 2020-06-28T17:43:18.97 0.6 undecidable manual S 148 22.755 115 0.22 46
IV.LNSS.HHZ. 2020-06-28T17:43:18.98 0.6 undecidable manual S 198 23.9538 50 -0.08 48
IV.FEMA.HNZ. 2020-06-28T17:43:17.20 0.6 undecidable manual S 339 18.3705 119 -0.19 47
IV.MNTT.EHZ. 2020-06-28T17:43:17.15 3.0 positive manual P -1.54 0
IV.MMO1.EHZ. 2020-06-28T17:43:17.36 0.6 undecidable manual S 57 18.7701 119 -0.16 47
IV.CSP1.EHZ. 2020-06-28T17:43:16.59 0.6 negative manual P 11 32.0457 50 0.08 47
IV.RM33.EHZ. 2020-06-28T17:43:16.78 0.1 undecidable manual P 169 33.8439 50 0 95
IV.LNSS.HHZ. 2020-06-28T17:43:15.23 0.1 undecidable manual P 198 23.9538 50 -0.03 96
IV.FDMO.HHZ. 2020-06-28T17:43:15.45 0.1 undecidable manual P 352 25.6521 50 -0.07 95
IV.SMA1.EHZ. 2020-06-28T17:43:15.52 0.1 undecidable manual P 140 25.6521 50 -0.01 96
IV.CESI.HHZ. 2020-06-28T17:43:15.91 0.1 undecidable manual P 320 28.6491 50 -0.08 94
IV.T1299.EHZ. 2020-06-28T17:43:15.20 0.1 undecidable manual P 148 22.755 115 0.12 95
IV.MMO1.EHZ. 2020-06-28T17:43:14.33 0.1 undecidable manual P 57 18.7701 119 -0.04 97
IV.MF5.EHZ. 2020-06-28T17:43:14.73 3.0 undecidable manual P -1.76 0
IV.FEMA.HNZ. 2020-06-28T17:43:14.79 0.1 undecidable manual P 339 18.3705 119 0.49 88
IV.NRCA.HHZ. 2020-06-28T17:43:13.39 0.6 undecidable manual S 333 3.1968 163 -0.45 46
IV.NRCA.HHZ. 2020-06-28T17:43:12.23 0.1 undecidable manual P 333 3.1968 163 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:2.2 0.002483332 0.1536 AML other m 2020-06-28T17:43:13.49
IV.NRCA.HHN. ML:2.0 0.001891557 0.1024 AML other m 2020-06-28T17:43:13.42
IV.NRCA.HNE. ML:2.1 0.002372084 0.1536 AML other m 2020-06-28T17:43:13.49
IV.NRCA.HNN. ML:1.9 0.0015186255 0.1024 AML other m 2020-06-28T17:43:13.47
IV.LNSS.HHE. ML:1.3 0.00012318427 0.1664 AML other m 2020-06-28T17:43:19.16
IV.LNSS.HHN. ML:1.7 0.00029056645 0.1792 AML other m 2020-06-28T17:43:19.37
IV.LNSS.HNE. ML:1.4 0.00014572335 0.1664 AML other m 2020-06-28T17:43:19.17
IV.LNSS.HNN. ML:1.6 0.00027408785 0.2688 AML other m 2020-06-28T17:43:19.39
IV.FDMO.HHE. ML:1.0 0.00006144775 0.192 AML other m 2020-06-28T17:43:19.94
IV.FDMO.HHN. ML:1.0 0.00005412552500000001 0.1792 AML other m 2020-06-28T17:43:21.14
IV.SMA1.EHE. ML:1.1 0.000076917135 0.3968 AML other m 2020-06-28T17:43:25.94
IV.SMA1.EHN. ML:1.1 0.000067574185 0.3456 AML other m 2020-06-28T17:43:24.23
IV.CESI.HHE. ML:1.2 0.00008186483999999999 0.2048 AML other m 2020-06-28T17:43:20.89
IV.CESI.HHN. ML:1.2 0.0000859844 0.1024 AML other m 2020-06-28T17:43:20.51
IV.CSP1.EHE. ML:1.0 0.000048556604999999996 0.1024 AML other m 2020-06-28T17:43:22.30
IV.RM33.EHE. ML:0.8 0.000026179510000000003 0.1664 AML other m 2020-06-28T17:43:23.39
IV.RM33.EHN. ML:0.9 0.000035670545 0.128 AML other m 2020-06-28T17:43:23.32
IV.ASSB.HHE. ML:1.1 0.00003338935 0.256 AML other m 2020-06-28T17:43:25.48
IV.ASSB.HHN. ML:1.0 0.00003013992 0.1536 AML other m 2020-06-28T17:43:26.71
IV.ATCC.EHE. ML:1.0 0.00002120383 0.2176 AML other m 2020-06-28T17:43:30.75
IV.ATCC.EHN. ML:1.1 0.000023278029 0.2688 AML other m 2020-06-28T17:43:30.43
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