Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 05-09-2020 and time 12:36:52 (Italy) in region 5 km E Norcia (PG)

A magnitude ML 1.3 earthquake occured in region: 5 km E Norcia (PG), on

  • 05-09-2020 10:36:52 (UTC)
  • 05-09-2020 12:36:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8100, 13.1470 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 5 4957 4957
Castelsantangelo sul Nera MC 10 281 5238
Preci PG 12 724 5962
Arquata del Tronto AP 13 1178 7140
Visso MC 14 1107 8247
Cascia PG 15 3217 11464
Ussita MC 15 444 11908
Accumoli RI 15 667 12575
Montegallo AP 16 523 13098
Montemonaco AP 18 604 13702
Cerreto di Spoleto PG 19 1075 14777

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
49 Km W of Teramo (54892 inhabitants)
49 Km NE of Terni (111501 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
95 Km W of Pescara (121014 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km NW of Chieti (51815 inhabitants)
98 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
Reviewed
Rev100 		ML 1.3 2020-09-05
10:36:52		 42.8098 13.1473 11 2020-09-05
10:41:43		 Sala Sismica INGV-Roma 82643121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-05 10:36:52 ± 0.03
Latitude 42.8098 ± 0.0018
Longitude 13.1473 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82643121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 227
Semi-minor axis of confidence ellipse (meter) 213
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 55
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
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 19
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 82643121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-05 10:41:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BRSN.EHZ. 2020-09-05T10:37:24.26 3.0 negative manual Pg 3.59 0
IV.IMOL.HNZ. 2020-09-05T10:37:22.85 3.0 negative manual Pn -0.43 0
IV.RCAV.EHZ. 2020-09-05T10:37:21.59 3.0 undecidable manual S -4.4 0
IV.COR1.EHZ. 2020-09-05T10:37:21.51 3.0 undecidable manual S 0 0
IV.EL6.EHZ. 2020-09-05T10:37:11.69 3.0 undecidable manual S 0.33 0
IV.ARVD.HHZ. 2020-09-05T10:37:07.65 3.0 negative manual P 1.28 0
IV.RM33.EHZ. 2020-09-05T10:37:04.08 0.3 undecidable manual S 171 33.8439 50 0.16 70
IV.CSP1.EHZ. 2020-09-05T10:37:03.33 0.6 undecidable manual S 8 31.6461 50 0 48
IV.CESI.HHZ. 2020-09-05T10:37:02.59 0.6 undecidable manual S 318 29.2485 50 -0.12 48
IV.ATCC.EHZ. 2020-09-05T10:37:02.90 3.0 undecidable manual P -0.25 0
IV.SMA1.EHZ. 2020-09-05T10:37:01.61 0.6 undecidable manual S 142 25.0527 50 0.02 49
IV.LNSS.HHZ. 2020-09-05T10:37:01.46 0.3 undecidable manual S 201 24.5532 50 0.02 73
IV.GAVE.EHZ. 2020-09-05T10:37:01.36 0.3 undecidable manual S 238 24.3534 50 -0.04 73
IV.TERO.HHZ. 2020-09-05T10:37:00.26 3.0 undecidable manual P -0.2 0
IV.MTRA.EHZ. 2020-09-05T10:37:00.36 0.6 undecidable manual S 106 21.1677 116 -0.12 48
IV.MMO1.EHZ. 2020-09-05T10:36:59.40 0.3 undecidable manual S 56 17.6712 121 -0.03 74
IV.MF5.EHZ. 2020-09-05T10:36:59.05 3.0 undecidable manual P 0.33 0
IV.RM33.EHZ. 2020-09-05T10:36:59.00 0.1 undecidable manual P 171 33.8439 50 -0.01 97
IV.CSP1.EHZ. 2020-09-05T10:36:58.59 0.1 undecidable manual P 8 31.6461 50 -0.08 95
IV.CESI.HHZ. 2020-09-05T10:36:58.27 0.3 undecidable manual P 318 29.2485 50 -0.04 72
IV.MC2.EHZ. 2020-09-05T10:36:58.02 0.3 undecidable manual S 17 11.7771 132 0.25 72
IV.LNSS.HHZ. 2020-09-05T10:36:57.63 0.1 undecidable manual P 201 24.5532 50 0.05 97
IV.GAVE.EHZ. 2020-09-05T10:36:57.58 0.1 undecidable manual P 238 24.3534 50 0.02 98
IV.SMA1.EHZ. 2020-09-05T10:36:57.61 0.1 undecidable manual P 142 25.0527 50 -0.05 97
IV.MMO1.EHZ. 2020-09-05T10:36:56.33 0.1 undecidable manual P 56 17.6712 121 -0.09 98
IV.MTRA.EHZ. 2020-09-05T10:36:56.96 0.1 undecidable manual P 106 21.1677 116 -0.06 98
IV.MC2.EHZ. 2020-09-05T10:36:55.67 0.1 undecidable manual P 17 11.7771 132 0.21 96
IV.NRCA.HHZ. 2020-09-05T10:36:55.92 0.3 undecidable manual S 314 3.7962 160 -0.25 73
IV.NRCA.HHZ. 2020-09-05T10:36:54.62 0.1 undecidable manual P 314 3.7962 160 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.9 0.001385 1.24 AML other m 2020-09-05T10:36:56.32
IV.NRCA.HHN. ML:1.8 0.0011 0.34 AML other m 2020-09-05T10:36:56.67
IV.MTRA.EHN. ML:1.3 0.00014000000000000001 1.04 AML other m 2020-09-05T10:37:00.26
IV.MTRA.EHE. ML:1.2 0.000122 0.62 AML other m 2020-09-05T10:37:01.57
IV.GAVE.EHE. ML:1.3 0.0001149 0.4 AML other m 2020-09-05T10:37:01.56
IV.LNSS.HHN. ML:1.3 0.0001225 1.78 AML other m 2020-09-05T10:37:01.93
IV.GAVE.EHN. ML:1.4 0.0001545 1.7 AML other m 2020-09-05T10:37:01.93
IV.LNSS.HHE. ML:1.4 0.00014150000000000002 0.1 AML other m 2020-09-05T10:37:02.26
IV.CESI.HHE. ML:1.3 0.0000906 0.22 AML other m 2020-09-05T10:37:02.77
IV.CESI.HHN. ML:1.4 0.00012445000000000002 0.16 AML other m 2020-09-05T10:37:02.88
IV.TERO.HHN. ML:1.2 0.00004475 1.94 AML other m 2020-09-05T10:37:07.97
IV.TERO.HHE. ML:1.0 0.0000363 0.44 AML other m 2020-09-05T10:37:07.37
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