Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 01-09-2020 and time 10:37:50 (Italy) in region 5 km NW Preci (PG)

A magnitude ML 1.4 earthquake occured in region: 5 km NW Preci (PG), on

  • 01-09-2020 08:37:50 (UTC)
  • 01-09-2020 10:37:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9030, 12.9880 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.

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
Preci PG 5 724 724
Sellano PG 5 1079 1803
Visso MC 9 1107 2910
Monte Cavallo MC 10 145 3055
Cerreto di Spoleto PG 11 1075 4130
Ussita MC 13 444 4574
Castelsantangelo sul Nera MC 14 281 4855
Norcia PG 15 4957 9812
Pieve Torina MC 17 1458 11270
Fiordimonte MC 17 202 11472
Vallo di Nera PG 18 364 11836
Serravalle di Chienti MC 19 1070 12906
Pievebovigliana MC 19 866 13772
Campello sul Clitunno PG 20 2442 16214
Trevi PG 20 8469 24683

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
54 Km E of Perugia (166134 inhabitants)
65 Km W of Teramo (54892 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
90 Km SW of Ancona (100861 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 2020-09-01
08:37:50		 42.9033 12.9885 11 2021-02-26
14:55:55		 Bollettino Sismico Italiano INGV 82976331
Reviewed
Rev100 		ML 1.5 2020-09-01
08:37:50		 42.9007 12.99 11 2020-09-01
08:42:15		 Sala Sismica INGV-Roma 82526281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-01 08:37:50 ± 0.04
Latitude 42.9033 ± 0.0027
Longitude 12.9885 ± 0.0037
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 82976331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 350
Semi-minor axis of confidence ellipse (meter) 246
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 64
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.07374
Epicentral distance of station farthest from the epicenter (degree) 0.37951
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 82526281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-01 08:42:15

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 82976331
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-17 07:38:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HNZ. 2020-09-01T08:38:02.27 0.6 undecidable manual S 173 33.6441 50 0.17 46
IV.ASSB.HHZ. 2020-09-01T08:38:01.30 0.6 undecidable manual S 300 30.9468 50 -0.08 48
IV.PF6.EHN. 2020-09-01T08:38:01.31 0.6 undecidable manual S 33 30.9468 50 -0.07 48
IV.MMO1.EHZ. 2020-09-01T08:38:00.31 0.6 undecidable manual S 91 27.4503 50 -0.16 47
IV.MML1.HNE. 2020-09-01T08:37:59.27 0.6 undecidable manual S 357 23.3544 50 -0.09 48
IV.GAVE.EHZ. 2020-09-01T08:37:59.53 0.6 undecidable manual S 198 24.6531 50 -0.18 47
IV.ATCC.EHZ. 2020-09-01T08:37:58.83 0.6 undecidable manual P 318 42.1245 50 0.26 45
IV.FDMO.HHZ. 2020-09-01T08:37:57.39 0.3 undecidable manual S 28 16.7721 123 -0.21 71
IV.MC2.EHZ. 2020-09-01T08:37:57.89 0.6 undecidable manual S 87 16.2726 124 0.43 45
IV.LNSS.HNZ. 2020-09-01T08:37:57.14 0.3 undecidable manual P 173 33.6441 50 -0.12 71
IV.MMO1.EHZ. 2020-09-01T08:37:56.59 0.6 undecidable manual P 91 27.4503 50 0.27 46
IV.ASSB.HHZ. 2020-09-01T08:37:56.82 0.6 undecidable manual P 300 30.9468 50 -0.02 48
IV.PF6.EHN. 2020-09-01T08:37:56.69 0.3 undecidable manual P 33 30.9468 50 -0.15 70
IV.NRCA.HHZ. 2020-09-01T08:37:56.15 0.3 undecidable manual S 127 12.7761 130 -0.34 70
IV.CESI.HHZ. 2020-09-01T08:37:56.55 0.3 undecidable manual S 329 13.1757 130 -0.03 74
IV.FEMA.HNE. 2020-09-01T08:37:55.40 0.3 undecidable manual S 37 8.1807 143 0.01 75
IT.MTCL.HGZ. 2020-09-01T08:37:55.53 0.3 undecidable manual S 5 10.0788 137 -0.28 71
IV.MML1.HNE. 2020-09-01T08:37:55.77 0.3 undecidable manual P 357 23.3544 50 0.09 72
IV.GAVE.EHZ. 2020-09-01T08:37:55.87 0.1 positive manual P 198 24.6531 50 -0.01 98
IV.MC2.EHZ. 2020-09-01T08:37:54.79 0.3 undecidable manual P 87 16.2726 124 0.21 71
IV.CESI.HHZ. 2020-09-01T08:37:54.25 0.1 negative manual P 329 13.1757 130 0.18 96
IV.FDMO.HHZ. 2020-09-01T08:37:54.68 0.1 negative manual P 28 16.7721 123 0.02 99
IV.NRCA.HHZ. 2020-09-01T08:37:53.98 0.1 positive manual P 127 12.7761 130 -0.04 99
IV.FEMA.HNE. 2020-09-01T08:37:53.58 0.1 undecidable manual P 37 8.1807 143 0.2 97
IT.MTCL.HGZ. 2020-09-01T08:37:53.64 0.1 undecidable manual P 5 10.0788 137 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:1.5 0.00032816515 0.0768 AML other m 2020-09-01T08:37:56.46
IV.NRCA.HNN. ML:1.6 0.00041819465 0.1408 AML other m 2020-09-01T08:37:56.36
IV.NRCA.HHN. ML:1.6 0.00046272634999999996 0.1024 AML other m 2020-09-01T08:37:56.36
IV.NRCA.HHE. ML:1.5 0.0003568263 0.0768 AML other m 2020-09-01T08:37:56.46
IV.CESI.HHN. ML:1.3 0.0002185995 0.32 AML other m 2020-09-01T08:37:56.89
IV.CESI.HHE. ML:1.0 0.00010028228999999999 0.0768 AML other m 2020-09-01T08:37:56.93
IV.FDMO.HHN. ML:1.5 0.00027794989999999997 0.1408 AML other m 2020-09-01T08:37:57.62
IV.FDMO.HHE. ML:1.6 0.0003661124 0.16 AML other m 2020-09-01T08:37:57.57
IV.GAVE.EHN. ML:1.2 0.000096125725 0.1216 AML other m 2020-09-01T08:38:00.39
IV.GAVE.HNE. ML:1.5 0.00017849854500000002 0.3072 AML other m 2020-09-01T08:37:59.87
IV.GAVE.EHE. ML:1.5 0.00018776290000000002 0.32 AML other m 2020-09-01T08:37:59.87
IV.ASSB.HHN. ML:0.8 0.000027681035 0.1024 AML other m 2020-09-01T08:38:01.69
IV.ASSB.HHE. ML:0.8 0.000032051465 0.0832 AML other m 2020-09-01T08:38:01.78
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