Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 01-02-2020 and time 01:41:39 (Italy) in region 4 km NW Preci (PG)

A magnitude ML 1.0 earthquake occured in region: 4 km NW Preci (PG), on

  • 01-02-2020 00:41:39 (UTC)
  • 01-02-2020 01:41:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9120, 13.0090 at 10 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 4 724 724
Visso MC 7 1107 1831
Sellano PG 7 1079 2910
Monte Cavallo MC 9 145 3055
Ussita MC 11 444 3499
Castelsantangelo sul Nera MC 12 281 3780
Cerreto di Spoleto PG 13 1075 4855
Norcia PG 15 4957 9812
Pieve Torina MC 15 1458 11270
Fiordimonte MC 16 202 11472
Pievebovigliana MC 18 866 12338
Fiastra MC 18 559 12897
Serravalle di Chienti MC 18 1070 13967
Acquacanina MC 19 121 14088
Muccia MC 19 915 15003
Vallo di Nera PG 20 364 15367

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
49 Km NE of Terni (111501 inhabitants)
55 Km E of Perugia (166134 inhabitants)
63 Km W of Teramo (54892 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
92 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 1.0 2020-02-01
00:41:39		 42.9123 13.0088 10 2020-07-18
21:08:25		 Bollettino Sismico Italiano INGV 77190601
Reviewed
Rev100 		ML 1.2 2020-02-01
00:41:39		 42.9088 13.0073 11 2020-02-01
00:47:51		 Sala Sismica INGV-Roma 76086041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-01 00:41:39 ± 0.05
Latitude 42.9123 ± 0.0027
Longitude 13.0088 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77190601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 341
Semi-minor axis of confidence ellipse (meter) 225
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 78
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 46
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.05756
Epicentral distance of station farthest from the epicenter (degree) 0.54859
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 23
Type of magnitude ML
Reference to an origin 77190601
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-11 12:30:23

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 76086041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-01 00:47:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSFR.HHZ. 2020-02-01T00:41:59.40 0.3 undecidable manual S 343 60.8946 50 0.73 57
IV.EL6.EHZ. 2020-02-01T00:41:55.33 0.3 undecidable manual S 9 46.8198 50 0.42 65
IV.RM33.EHZ. 2020-02-01T00:41:55.37 0.3 undecidable manual S 159 47.8188 50 0.21 68
IV.ATCC.EHZ. 2020-02-01T00:41:54.00 0.3 undecidable manual S 315 42.5241 50 0.24 69
IV.MF5.EHZ. 2020-02-01T00:41:53.14 0.3 undecidable manual S 77 37.5291 50 0.72 60
IV.ARRO.EHZ. 2020-02-01T00:41:53.73 0.3 undecidable manual S 208 41.9247 50 0.13 70
IV.SMA1.EHZ. 2020-02-01T00:41:53.74 0.3 undecidable manual S 140 41.0256 50 0.38 67
IV.MOMA.HHZ. 2020-02-01T00:41:52.78 0.3 undecidable manual S 252 37.629 50 0.33 68
IV.SNTG.HHZ. 2020-02-01T00:41:52.52 0.3 undecidable manual S 352 38.4282 50 -0.13 71
IV.GUMA.HHZ. 2020-02-01T00:41:51.09 0.3 undecidable manual S 58 31.2465 50 0.34 69
IV.LNSS.HHZ. 2020-02-01T00:41:51.31 0.3 undecidable manual S 176 34.4433 50 -0.28 69
IV.SSFR.HHZ. 2020-02-01T00:41:50.79 0.3 undecidable manual P 343 60.8946 50 0.1 68
IV.PF6.EHN. 2020-02-01T00:41:49.93 0.3 undecidable manual S 31 29.1486 50 -0.26 70
IV.SEF1.HNN. 2020-02-01T00:41:49.23 0.3 undecidable manual S 349 26.4513 50 -0.24 71
IV.GAVE.EHZ. 2020-02-01T00:41:49.08 0.3 undecidable manual S 201 26.1516 50 -0.3 70
IV.RM33.EHZ. 2020-02-01T00:41:48.99 0.3 undecidable manual P 159 47.8188 50 0.33 67
IV.MMO1.EHZ. 2020-02-01T00:41:48.84 0.3 undecidable manual S 93 25.8519 50 -0.47 67
IV.MML1.HNE. 2020-02-01T00:41:48.02 0.3 undecidable manual S 352 22.5552 115 -0.38 69
IV.EL6.EHZ. 2020-02-01T00:41:48.42 0.3 undecidable manual P 9 46.8198 50 -0.1 70
IV.CSP1.EHE. 2020-02-01T00:41:48.94 0.3 undecidable manual S 39 25.4523 50 -0.26 70
IV.ARRO.EHZ. 2020-02-01T00:41:47.63 0.6 undecidable manual P 208 41.9247 50 -0.13 47
IV.SMA1.EHZ. 2020-02-01T00:41:47.49 0.3 undecidable manual P 140 41.0256 50 -0.13 70
IV.MF5.EHZ. 2020-02-01T00:41:47.24 0.3 undecidable manual P 77 37.5291 50 0.15 70
IV.ATCC.EHZ. 2020-02-01T00:41:47.74 0.3 undecidable manual P 315 42.5241 50 -0.12 70
IV.MOMA.HHZ. 2020-02-01T00:41:47.31 0.3 undecidable manual P 252 37.629 50 0.21 70
IV.GUMA.HHZ. 2020-02-01T00:41:46.15 0.3 undecidable manual P 58 31.2465 50 0.03 73
IV.LNSS.HHZ. 2020-02-01T00:41:46.27 0.3 undecidable manual P 176 34.4433 50 -0.34 68
IV.SNTG.HHZ. 2020-02-01T00:41:46.97 0.3 undecidable manual P 352 38.4282 50 -0.25 69
IV.MC2.EHZ. 2020-02-01T00:41:46.35 0.3 undecidable manual S 90 14.6742 125 0.32 71
IV.CSP1.EHE. 2020-02-01T00:41:45.00 0.3 undecidable manual P 39 25.4523 50 -0.23 71
IV.FDMO.HHN. 2020-02-01T00:41:45.95 0.3 undecidable manual S 25 15.1737 124 -0.23 72
IV.NRCA.HHZ. 2020-02-01T00:41:45.09 0.6 undecidable manual S 136 12.2766 130 -0.28 48
IV.PF6.EHN. 2020-02-01T00:41:45.52 0.3 undecidable manual P 31 29.1486 50 -0.28 70
IV.SEF1.HNN. 2020-02-01T00:41:45.17 0.3 undecidable manual P 349 26.4513 50 -0.21 71
IV.CESI.HHZ. 2020-02-01T00:41:45.81 0.3 undecidable manual S 321 13.2756 128 0.15 74
IV.GAVE.EHZ. 2020-02-01T00:41:45.13 0.1 positive manual P 201 26.1516 50 -0.2 95
IV.MML1.HNE. 2020-02-01T00:41:44.55 0.3 undecidable manual P 352 22.5552 115 -0.21 71
IT.MTCL.HGZ. 2020-02-01T00:41:44.55 0.6 undecidable manual S 355 9.0798 139 -0.04 51
IV.FEMA.HNE. 2020-02-01T00:41:44.25 0.3 undecidable manual S 31 6.3936 148 0.21 74
IV.MMO1.EHZ. 2020-02-01T00:41:44.95 0.3 undecidable manual P 93 25.8519 50 -0.34 69
IV.CESI.HHZ. 2020-02-01T00:41:43.31 0.3 undecidable manual P 321 13.2756 128 0.13 74
IV.MC2.EHZ. 2020-02-01T00:41:43.65 0.3 undecidable manual P 90 14.6742 125 0.26 72
IV.FDMO.HHN. 2020-02-01T00:41:43.44 0.1 undecidable manual P 25 15.1737 124 -0.04 100
IT.MTCL.HGZ. 2020-02-01T00:41:42.61 0.3 undecidable manual P 355 9.0798 139 0.05 76
IV.FEMA.HNE. 2020-02-01T00:41:42.47 0.1 undecidable manual P 31 6.3936 148 0.22 98
IV.NRCA.HHZ. 2020-02-01T00:41:42.94 0.1 positive manual P 136 12.2766 130 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.0 0.0000296 0.88 AML other m 2020-02-01T00:41:58.48
IV.SMA1.EHE. ML:1.0 0.0000288 0.64 AML other m 2020-02-01T00:41:59.45
IV.GUMA.HHE. ML:1.1 0.00005318528999999999 0.14 AML other m 2020-02-01T00:41:51.23
IV.GUMA.HHN. ML:1.2 0.00006262695999999999 0.1 AML other m 2020-02-01T00:41:51.28
IV.SNTG.HHE. ML:1.0 0.00003657776 0.1 AML other m 2020-02-01T00:41:53.16
IV.SNTG.HHN. ML:1.0 0.00003664590500000001 0.2 AML other m 2020-02-01T00:41:52.87
IV.MOMA.HHE. ML:0.8 0.000024378435 0.16 AML other m 2020-02-01T00:41:54.05
IV.ARRO.EHN. ML:1.0 0.000032208315 0.2 AML other m 2020-02-01T00:41:54.37
IV.ARRO.EHE. ML:1.1 0.00003943302 0.16 AML other m 2020-02-01T00:41:54.73
IV.ATCC.EHE. ML:0.8 0.000022188939999999996 0.26 AML other m 2020-02-01T00:41:55.28
IV.ATCC.EHN. ML:0.8 0.000022323870000000003 0.34 AML other m 2020-02-01T00:41:55.37
IV.EL6.EHE. ML:1.4 0.00007282266500000001 0.26 AML other m 2020-02-01T00:41:55.43
IV.EL6.EHN. ML:1.4 0.000065336875 0.16 AML other m 2020-02-01T00:41:56.60
IV.RM33.EHE. ML:0.9 0.000018429372 0.12 AML other m 2020-02-01T00:41:56.66
IV.RM33.EHN. ML:0.9 0.000017600885000000002 0.16 AML other m 2020-02-01T00:41:57.70
IV.TERO.HHN. ML:0.7 0.00001067504 0.1 AML other m 2020-02-01T00:41:59.57
IV.TERO.HHE. ML:0.7 0.0000108525405 0.12 AML other m 2020-02-01T00:42:00.05
IV.ARVD.HHN. ML:0.7 0.000008127803 0.14 AML other m 2020-02-01T00:42:02.17
IV.ARVD.HHE. ML:0.7 0.000012122698500000001 0.12 AML other m 2020-02-01T00:42:01.36
IV.SSFR.HHE. ML:1.2 0.00002825709 0.18 AML other m 2020-02-01T00:42:01.76
IV.SSFR.HHN. ML:1.2 0.000027878355 0.14 AML other m 2020-02-01T00:42:01.00
IV.CESI.HHN. ML:1.5 0.00031419465 0.1 AML other m 2020-02-01T00:41:46.10
IV.CESI.HHE. ML:1.3 0.0001912801 0.08 AML other m 2020-02-01T00:41:46.10
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