Earthquake with magnitude of ML 1.4 on date 13-09-2020 and time 19:35:55 (Italy) in region 4 km NE Norcia (PG)

A magnitude ML 1.4 earthquake occured in region: 4 km NE Norcia (PG), on

  • 13-09-2020 17:35:55 (UTC)
  • 13-09-2020 19:35:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8180, 13.1360 at 7 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.

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 9 281 5238
Preci PG 11 724 5962
Visso MC 13 1107 7069
Arquata del Tronto AP 14 1178 8247
Ussita MC 14 444 8691
Cascia PG 15 3217 11908
Montegallo AP 16 523 12431
Accumoli RI 16 667 13098
Cerreto di Spoleto PG 18 1075 14173
Montemonaco AP 18 604 14777
Sellano PG 19 1079 15856

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
49 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
69 Km E of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
97 Km W of Pescara (121014 inhabitants)
97 Km NE of Guidonia Montecelio (88673 inhabitants)
99 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
Bulletin
Rev1000
ML 1.4 2020-09-13
17:35:55
42.8177 13.1362 7 2021-02-26
14:56:08
Bollettino Sismico Italiano INGV 85103591
Reviewed
Rev100
ML 1.4 2020-09-13
17:35:55
42.8282 13.1317 4 2020-09-13
18:07:35
Sala Sismica INGV-Roma 82881411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-13 17:35:55 ± 0.13
Latitude 42.8177 ± 0.0054
Longitude 13.1362 ± 0.0086
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85103591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 654
Semi-minor axis of confidence ellipse (meter) 387
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 75
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.02248
Epicentral distance of station farthest from the epicenter (degree) 0.51171
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
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 85103591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-30 09:00:07

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 82881411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-13 18:07:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2020-09-13T17:36:10.29 0.6 undecidable manual S 119 43.8228 50 -0.31 45
IV.MF5.EHZ. 2020-09-13T17:36:07.62 0.6 undecidable manual S 54 32.3454 102 0.63 42
IV.RM33.EHZ. 2020-09-13T17:36:07.82 0.6 undecidable manual S 169 34.8429 101 -0.01 49
IV.GAVE.EHZ. 2020-09-13T17:36:05.04 0.3 undecidable manual S 235 24.1536 106 0.82 59
IV.EL6.EHZ. 2020-09-13T17:36:05.68 0.1 undecidable manual P 357 56.7987 50 -0.55 83
IV.MNTT.EHZ. 2020-09-13T17:36:05.06 0.3 undecidable manual P 54 46.1205 50 0.48 65
IV.MTRA.EHZ. 2020-09-13T17:36:04.01 0.3 undecidable manual S 108 22.2555 107 0.42 69
IV.FDMO.HHZ. 2020-09-13T17:36:04.19 0.3 undecidable manual S 351 24.5532 106 -0.18 72
IV.TERO.HHZ. 2020-09-13T17:36:03.70 0.3 undecidable manual P 119 43.8228 50 -0.52 64
IV.FEMA.HNE. 2020-09-13T17:36:03.00 0.6 undecidable manual S 336 17.4714 111 0.97 37
IV.RM33.EHZ. 2020-09-13T17:36:02.45 0.1 undecidable manual P 169 34.8429 101 -0.18 94
IV.MMO1.EHZ. 2020-09-13T17:36:02.14 0.1 undecidable manual S 60 17.9709 111 -0.04 100
IV.MF5.EHZ. 2020-09-13T17:36:02.20 0.3 undecidable manual P 54 32.3454 102 0.06 73
IV.FDMO.HHZ. 2020-09-13T17:36:00.19 0.1 undecidable manual P 351 24.5532 106 -0.44 91
IV.MC2.EHZ. 2020-09-13T17:36:00.42 0.6 undecidable manual S 22 11.2776 121 0.34 48
IV.MTRA.EHZ. 2020-09-13T17:36:00.24 0.1 undecidable manual P 108 22.2555 107 0.06 99
IV.GAVE.EHZ. 2020-09-13T17:36:00.71 0.3 undecidable manual P 235 24.1536 106 0.17 72
IV.MMO1.EHZ. 2020-09-13T17:35:59.29 0.1 undecidable manual P 60 17.9709 111 -0.08 99
IV.FEMA.HNE. 2020-09-13T17:35:59.96 0.3 undecidable manual P 336 17.4714 111 0.69 63
IV.MC2.EHZ. 2020-09-13T17:35:58.29 0.1 negative manual P 22 11.2776 121 0.14 99
IV.NRCA.HNZ. 2020-09-13T17:35:57.19 0.1 undecidable manual S 315 2.4975 160 -0.86 81
IV.NRCA.HNZ. 2020-09-13T17:35:56.74 0.1 positive manual P 315 2.4975 160 -0.24 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:1.5 0.00021200000000000003 0.22 AML other m 2020-09-13T17:36:05.42
IV.GAVE.EHE. ML:1.6 0.0002295 0.44 AML other m 2020-09-13T17:36:05.40
IV.FDMO.HHN. ML:1.4 0.0001475 0.56 AML other m 2020-09-13T17:36:06.42
IV.FDMO.HHE. ML:1.3 0.00011549999999999999 0.24 AML other m 2020-09-13T17:36:06.55
IV.RM33.EHN. ML:1.2 0.0000718 0.28 AML other m 2020-09-13T17:36:08.20
IV.RM33.EHE. ML:1.2 0.00006634999999999999 0.38 AML other m 2020-09-13T17:36:08.70
IV.TERO.HHE. ML:1.3 0.0000626 0.2 AML other m 2020-09-13T17:36:10.75
IV.TERO.HHN. ML:1.4 0.0000812 1.18 AML other m 2020-09-13T17:36:11.77
IV.MF5.EHE. ML:1.4 0.00011375 0.42 AML other m 2020-09-13T17:36:11.66
IV.MF5.EHN. ML:1.3 0.00008905000000000001 0.44 AML other m 2020-09-13T17:36:13.33
IV.MNTT.EHE. ML:1.8 0.00020750000000000003 1.24 AML other m 2020-09-13T17:36:13.15
IV.MNTT.EHN. ML:1.9 0.0002335 0.62 AML other m 2020-09-13T17:36:18.84
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