Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 13-09-2020 and time 09:40:37 (UTC) in region 1 km N Preci (PG)

A magnitude ML 1.4 earthquake occured in region: 1 km N Preci (PG), on

  • 13-09-2020 09:40:37 (UTC)
  • 13-09-2020 11:40:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8920, 13.0350 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
Preci PG 1 724 724
Visso MC 6 1107 1831
Sellano PG 9 1079 2910
Castelsantangelo sul Nera MC 10 281 3191
Ussita MC 10 444 3635
Monte Cavallo MC 12 145 3780
Norcia PG 12 4957 8737
Cerreto di Spoleto PG 13 1075 9812
Fiordimonte MC 17 202 10014
Pieve Torina MC 17 1458 11472
Fiastra MC 19 559 12031
Acquacanina MC 19 121 12152
Cascia PG 19 3217 15369
Bolognola MC 19 142 15511
Pievebovigliana MC 19 866 16377
Vallo di Nera PG 20 364 16741

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
49 Km NE of Terni (111501 inhabitants)
58 Km E of Perugia (166134 inhabitants)
61 Km W of Teramo (54892 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
93 Km NE of Viterbo (67173 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
09:40:37		 42.8922 13.0352 11 2021-02-26
14:56:04		 Bollettino Sismico Italiano INGV 84636231
Reviewed
Rev100 		ML 1.5 2020-09-13
09:40:37		 42.8932 13.0335 11 2020-09-13
12:45:05		 Sala Sismica INGV-Roma 82871381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-13 09:40:37 ± 0.03
Latitude 42.8922 ± 0.0018
Longitude 13.0352 ± 0.0025
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 84636231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 232
Semi-minor axis of confidence ellipse (meter) 180
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 52
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) 43
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 40
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) 0.07105
Epicentral distance of station farthest from the epicenter (degree) 0.49643
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 82871381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-13 12:45:05

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 35
Type of magnitude ML
Reference to an origin 84636231
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-11 12:07:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2020-09-13T09:40:54.80 0.6 undecidable manual S 123 55.1004 50 0.28 44
IV.EL6.EHZ. 2020-09-13T09:40:53.20 0.3 undecidable manual S 6 48.8178 50 0.37 66
IV.CAMP.HHZ. 2020-09-13T09:40:53.20 0.3 undecidable manual S 142 49.9167 50 0.07 70
IV.RM33.HNE. 2020-09-13T09:40:51.50 0.3 undecidable manual S 161 44.9217 50 -0.3 67
IV.MOMA.HNZ. 2020-09-13T09:40:50.40 0.3 undecidable manual S 256 39.0276 50 0.17 70
IV.MTRA.EHZ. 2020-09-13T09:40:48.40 0.3 undecidable manual S 117 33.0447 50 -0.22 70
IV.GUMA.HHZ. 2020-09-13T09:40:48.40 0.6 undecidable manual S 52 30.8469 50 0.36 45
IV.LNSS.HHZ. 2020-09-13T09:40:48.40 0.6 undecidable manual S 179 32.0457 50 0.03 48
IV.ASSB.HHZ. 2020-09-13T09:40:48.90 0.3 undecidable manual S 299 34.8429 50 -0.2 70
IV.TERO.HHZ. 2020-09-13T09:40:47.52 0.3 undecidable manual P 123 55.1004 50 0.29 66
IV.GAVE.EHZ. 2020-09-13T09:40:46.40 0.3 undecidable manual S 207 24.9528 50 -0.07 73
IV.EL6.EHZ. 2020-09-13T09:40:46.25 0.3 undecidable manual P 6 48.8178 50 -0.01 71
IV.MML1.HNZ. 2020-09-13T09:40:46.20 0.3 undecidable manual S 348 25.0527 50 -0.3 69
IV.CESX.HHE. 2020-09-13T09:40:46.11 0.3 undecidable manual P 229 48.2184 50 -0.05 70
IV.CAMP.HHZ. 2020-09-13T09:40:46.33 0.3 undecidable manual P 142 49.9167 50 -0.1 69
IV.CSP1.EHZ. 2020-09-13T09:40:46.70 0.3 undecidable manual S 32 26.0517 50 -0.07 73
IV.RM33.HNE. 2020-09-13T09:40:45.85 0.6 undecidable manual P 161 44.9217 50 0.19 46
IV.MMO1.HNZ. 2020-09-13T09:40:45.80 0.3 undecidable manual S 88 23.754 50 -0.34 69
IV.MOMA.HNZ. 2020-09-13T09:40:45.04 0.6 undecidable manual P 256 39.0276 50 0.28 45
IV.SMA1.EHZ. 2020-09-13T09:40:44.53 0.3 undecidable manual P 140 37.9287 50 -0.05 71
IV.CESI.HHZ. 2020-09-13T09:40:44.00 0.3 undecidable manual S 320 16.3725 123 -0.08 74
IV.ASSB.HHZ. 2020-09-13T09:40:44.15 0.3 undecidable manual P 299 34.8429 50 0.05 72
IV.GUMA.HHZ. 2020-09-13T09:40:43.78 0.6 undecidable manual P 52 30.8469 50 0.29 46
IV.MC2.EHZ. 2020-09-13T09:40:43.20 0.3 undecidable manual S 80 12.6762 130 0.16 73
IV.LNSS.HHZ. 2020-09-13T09:40:43.69 0.3 undecidable manual P 179 32.0457 50 0.01 73
IV.MTRA.EHZ. 2020-09-13T09:40:43.73 0.3 undecidable manual P 117 33.0447 50 -0.09 71
IV.FDMO.HHZ. 2020-09-13T09:40:43.90 0.3 undecidable manual S 15 16.5723 123 -0.23 72
IV.MMO1.HNZ. 2020-09-13T09:40:42.34 0.1 undecidable manual P 88 23.754 50 -0.05 98
IV.GAVE.EHZ. 2020-09-13T09:40:42.63 0.1 positive manual P 207 24.9528 50 0.05 98
IT.MTCL.HGZ. 2020-09-13T09:40:42.50 0.3 undecidable manual S 346 11.6772 133 -0.28 71
IV.CSP1.EHZ. 2020-09-13T09:40:42.71 0.1 positive manual P 32 26.0517 50 -0.05 97
IV.MML1.HNZ. 2020-09-13T09:40:42.57 0.3 undecidable manual P 348 25.0527 50 -0.03 73
IV.FDMO.HHZ. 2020-09-13T09:40:41.26 0.1 positive manual P 15 16.5723 123 0.03 99
IV.FEMA.HNZ. 2020-09-13T09:40:41.90 0.3 undecidable manual S 9 7.881 144 0 76
IV.CESI.HHZ. 2020-09-13T09:40:41.32 0.1 undecidable manual P 320 16.3725 123 0.12 98
IV.NRCA.HHZ. 2020-09-13T09:40:41.90 0.3 undecidable manual S 135 9.1797 140 -0.27 72
IT.MTCL.HGZ. 2020-09-13T09:40:40.50 0.3 undecidable manual P 346 11.6772 133 0.05 75
IV.FEMA.HNZ. 2020-09-13T09:40:40.13 0.3 undecidable manual P 9 7.881 144 0.19 73
IV.NRCA.HHZ. 2020-09-13T09:40:40.16 0.1 undecidable manual P 135 9.1797 140 0.06 100
IV.MC2.EHZ. 2020-09-13T09:40:40.79 0.1 undecidable manual P 80 12.6762 130 0.19 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.0 0.0006062045 0.1216 AML other m 2020-09-13T09:40:42.89
IV.NRCA.HHE. ML:0.0 0.00042829114999999997 0.0576 AML other m 2020-09-13T09:40:43.21
IV.CESI.HHE. ML:0.0 0.0003024926 0.1792 AML other m 2020-09-13T09:40:44.10
IV.CESI.HHN. ML:0.0 0.00027398786999999994 0.1216 AML other m 2020-09-13T09:40:44.11
IV.FDMO.HHE. ML:0.0 0.00061092535 0.1152 AML other m 2020-09-13T09:40:44.43
IV.FDMO.HHN. ML:0.0 0.0003665409 0.1152 AML other m 2020-09-13T09:40:44.66
IV.GAVE.EHE. ML:0.0 0.00021918199999999998 0.224 AML other m 2020-09-13T09:40:46.59
IV.GAVE.EHN. ML:0.0 0.00015946470000000003 0.2816 AML other m 2020-09-13T09:40:46.91
IV.LNSS.HHN. ML:0.0 0.000102339335 0.16 AML other m 2020-09-13T09:40:48.83
IV.MTRA.EHE. ML:0.0 0.00012185714999999999 0.1408 AML other m 2020-09-13T09:40:49.55
IV.ASSB.HHN. ML:0.0 0.00007479012 0.1792 AML other m 2020-09-13T09:40:49.42
IV.GUMA.HHE. ML:0.0 0.00009615 0.18 AML other m 2020-09-13T09:40:49.36
IV.MTRA.EHN. ML:0.0 0.0001541843 0.2048 AML other m 2020-09-13T09:40:49.51
IV.LNSS.HHE. ML:0.0 0.000135354 0.1216 AML other m 2020-09-13T09:40:48.84
IV.ASSB.HHE. ML:0.0 0.00005202675 0.1152 AML other m 2020-09-13T09:40:50.54
IV.SMA1.EHN. ML:0.0 0.00003901755 0.1792 AML other m 2020-09-13T09:40:52.20
IV.GUMA.HHN. ML:0.0 0.0001182976 0.2624 AML other m 2020-09-13T09:40:52.37
IV.SMA1.EHE. ML:0.0 0.000043825805000000003 0.4032 AML other m 2020-09-13T09:40:55.55
IV.TERO.HHN. ML:0.0 0.00002288171 0.1024 AML other m 2020-09-13T09:40:55.85
IV.TERO.HHE. ML:0.0 0.00003237498 0.16 AML other m 2020-09-13T09:40:56.50
IV.FEMA.HNE. ML:0.0 0.0017520530000000002 0.2304 AML other m 2020-09-13T09:40:42.16
IV.FEMA.HNN. ML:0.0 0.0009803042 0.1024 AML other m 2020-09-13T09:40:42.28
IV.NRCA.HNN. ML:0.0 0.0005493119 0.1216 AML other m 2020-09-13T09:40:42.68
IV.NRCA.HNE. ML:0.0 0.00038510639999999994 0.0768 AML other m 2020-09-13T09:40:43.21
IV.CESI.HNE. ML:0.0 0.0003326517 0.192 AML other m 2020-09-13T09:40:44.19
IV.CESI.HNN. ML:0.0 0.00024458045 0.1344 AML other m 2020-09-13T09:40:44.11
IV.GAVE.HNE. ML:0.0 0.00020196000000000002 0.2496 AML other m 2020-09-13T09:40:46.59
IV.CSP1.EHE. ML:0.0 0.000090003437 0.1984 AML other m 2020-09-13T09:40:47.79
IV.CSP1.EHN. ML:0.0 0.0000815227 0.2816 AML other m 2020-09-13T09:40:49.13
IV.LNSS.HNE. ML:0.0 0.000116652005 0.1344 AML other m 2020-09-13T09:40:48.78
IV.MTRA.HNN. ML:0.0 0.00015156839999999998 0.1984 AML other m 2020-09-13T09:40:49.52
IV.MTRA.HNE. ML:0.0 0.000136787945 0.1472 AML other m 2020-09-13T09:40:49.62
IV.EL6.EHN. ML:0.0 0.00007225512500000001 0.2176 AML other m 2020-09-13T09:40:54.28
IV.EL6.EHE. ML:0.0 0.00004833456 0.2368 AML other m 2020-09-13T09:40:58.37
IV.CAMP.HHE. ML:0.0 0.000013408456499999998 0.6976 AML other m 2020-09-13T09:40:55.20
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