Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 24-02-2020 and time 18:20:25 (Italy) in region 5 km NW Preci (PG)

A magnitude ML 1.0 earthquake occured in region: 5 km NW Preci (PG), on

  • 24-02-2020 17:20:25 (UTC)
  • 24-02-2020 18:20:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9080, 12.9970 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 5 724 724
Sellano PG 6 1079 1803
Visso MC 8 1107 2910
Monte Cavallo MC 10 145 3055
Cerreto di Spoleto PG 12 1075 4130
Ussita MC 12 444 4574
Castelsantangelo sul Nera MC 13 281 4855
Norcia PG 15 4957 9812
Pieve Torina MC 16 1458 11270
Fiordimonte MC 16 202 11472
Pievebovigliana MC 19 866 12338
Serravalle di Chienti MC 19 1070 13408
Vallo di Nera PG 19 364 13772
Fiastra MC 19 559 14331
Acquacanina MC 20 121 14452
Muccia MC 20 915 15367

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
54 Km E of Perugia (166134 inhabitants)
64 Km W of Teramo (54892 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
91 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 2020-02-24
17:20:25		 42.9078 12.997 11 2020-07-18
21:08:41		 Bollettino Sismico Italiano INGV 80500431
Reviewed
Rev100 		ML 1.1 2020-02-24
17:20:24		 42.8757 12.9697 15 2020-02-24
17:27:02		 Sala Sismica INGV-Roma 76780101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-24 17:20:25 ± 0.15
Latitude 42.9078 ± 0.0072
Longitude 12.9970 ± 0.0098
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80500431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 942
Semi-minor axis of confidence ellipse (meter) 489
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 225
Circular confidence region, given by single value of horizontal uncertainty (meter) 940.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 194
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42808
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 76780101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-24 17:27:02

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 80500431
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-25 17:39:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IT.VNF1.HGZ. 2020-02-24T17:21:30.68 3.0 undecidable manual Sn -0.04 0
XK.GIZZ.HHZ. 2020-02-24T17:21:29.44 3.0 positive manual Pn 8.78 0
IV.PLLN.EHZ. 2020-02-24T17:21:21.74 3.0 negative manual Pn 7.37 0
CH.FUORN.HHZ. 2020-02-24T17:21:21.49 3.0 undecidable manual Sn -4.44 0
IV.SPS2.HHZ. 2020-02-24T17:21:20.04 3.0 negative manual Pn 0.78 0
IV.VIVA.HHZ. 2020-02-24T17:21:15.04 3.0 undecidable manual Sg 8.54 0
IV.TDS.HHZ. 2020-02-24T17:21:15.89 3.0 undecidable manual Pn -0.55 0
IV.CAR1.HHZ. 2020-02-24T17:21:14.45 3.0 positive manual Pn -3.99 0
IV.MMUR.HNZ. 2020-02-24T17:21:14.12 3.0 undecidable manual Sg 8.46 0
IV.RM33.HNZ. 2020-02-24T17:21:08.16 3.0 undecidable manual Sn -1.2 0
IV.IMOL.HNZ. 2020-02-24T17:20:53.19 3.0 undecidable manual Sg -0.08 0
IV.EL6.EHZ. 2020-02-24T17:20:41.28 0.3 undecidable manual S 10 47.5191 50 0.37 65
IV.VVLD.HHZ. 2020-02-24T17:20:36.98 3.0 undecidable manual P -0.64 0
GU.ENR.HHZ. 2020-02-24T17:20:35.62 3.0 undecidable manual Sn 1.5 0
IV.CSP1.EHZ. 2020-02-24T17:20:35.10 0.6 undecidable manual S 39 26.4513 50 -0.19 47
IV.EL6.EHZ. 2020-02-24T17:20:34.34 0.1 undecidable manual P 10 47.5191 50 -0.12 92
IV.FDMO.HHZ. 2020-02-24T17:20:32.05 0.6 undecidable manual S 27 16.0728 123 -0.28 47
GU.BLANC.HHZ. 2020-02-24T17:20:32.96 3.0 undecidable manual Pn -0.14 0
IV.MC2.EHZ. 2020-02-24T17:20:32.51 0.6 undecidable manual S 88 15.5733 124 0.31 47
IV.CESI.HHZ. 2020-02-24T17:20:31.40 0.6 undecidable manual S 325 13.0758 129 -0.11 49
IV.CSP1.EHZ. 2020-02-24T17:20:31.04 0.1 undecidable manual P 39 26.4513 50 -0.18 94
IV.NRCA.HHZ. 2020-02-24T17:20:31.10 0.6 undecidable manual S 131 12.5763 130 -0.26 47
IV.CESI.HHZ. 2020-02-24T17:20:29.18 0.1 negative manual P 325 13.0758 129 0.14 97
IV.FDMO.HHZ. 2020-02-24T17:20:29.47 0.1 undecidable manual P 27 16.0728 123 -0.04 99
IV.MC2.EHZ. 2020-02-24T17:20:29.70 0.3 undecidable manual P 88 15.5733 124 0.27 71
IV.NRCA.HHZ. 2020-02-24T17:20:28.95 0.1 undecidable manual P 131 12.5763 130 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.0 0.00011449999999999999 1.18 AML other m 2020-02-24T17:20:31.20
IV.NRCA.HHE. ML:1.0 0.0000925 0.08 AML other m 2020-02-24T17:20:31.83
IV.FDMO.HHN. ML:1.2 0.00014150000000000002 0.42 AML other m 2020-02-24T17:20:32.26
IV.CESI.HHE. ML:0.8 0.00006525 0.68 AML other m 2020-02-24T17:20:32.70
IV.FDMO.HHE. ML:1.4 0.00021050000000000002 0.34 AML other m 2020-02-24T17:20:32.24
IV.CSP1.EHE. ML:0.9 0.000046240335 0.256 AML other m 2020-02-24T17:20:35.71
IV.CSP1.EHN. ML:0.8 0.000036592141000000004 0.128 AML other m 2020-02-24T17:20:35.66
IV.GAVE.EHN. ML:0.8 0.0000418 0.08 AML other m 2020-02-24T17:20:35.81
IV.GAVE.EHE. ML:1.0 0.000057999999999999994 0.58 AML other m 2020-02-24T17:20:36.41
IV.EL6.EHE. ML:1.0 0.000024489870000000002 0.384 AML other m 2020-02-24T17:20:41.66
IV.EL6.EHN. ML:1.0 0.000030380070000000002 0.2816 AML other m 2020-02-24T17:20:42.31
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