Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 18-05-2020 and time 17:55:56 (Italy) in region 2 km NW Preci (PG)

A magnitude ML 1.2 earthquake occured in region: 2 km NW Preci (PG), on

  • 18-05-2020 15:55:56 (UTC)
  • 18-05-2020 17:55:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8890, 13.0180 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 2 724 724
Sellano PG 7 1079 1803
Visso MC 8 1107 2910
Castelsantangelo sul Nera MC 11 281 3191
Cerreto di Spoleto PG 11 1075 4266
Ussita MC 12 444 4710
Monte Cavallo MC 12 145 4855
Norcia PG 12 4957 9812
Fiordimonte MC 18 202 10014
Pieve Torina MC 18 1458 11472
Vallo di Nera PG 18 364 11836
Cascia PG 19 3217 15053
Fiastra MC 20 559 15612

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
57 Km E of Perugia (166134 inhabitants)
62 Km W of Teramo (54892 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
91 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
Reviewed
Rev100 		ML 1.2 2020-05-18
15:55:56		 42.8887 13.0183 11 2020-05-18
16:05:23		 Sala Sismica INGV-Roma 79287781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-18 15:55:56 ± 0.06
Latitude 42.8887 ± 0.0027
Longitude 13.0183 ± 0.0061
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 79287781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 469
Semi-minor axis of confidence ellipse (meter) 234
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 255
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.44426
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 79287781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-18 16:05:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
XK.GIZZ.HHZ. 2020-05-18T15:57:54.10 3.0 undecidable manual Sn -2.37 0
IV.ZONE.HHZ. 2020-05-18T15:57:46.79 3.0 undecidable manual Sg 13.89 0
IV.MILN.HHZ. 2020-05-18T15:57:43.62 3.0 undecidable manual Sn 5.54 0
IV.CRAC.EHZ. 2020-05-18T15:57:38.19 3.0 undecidable manual Sn 6.45 0
IV.PCN.EHZ. 2020-05-18T15:57:33.32 3.0 undecidable manual Sg 8.82 0
IV.CMPR.HHZ. 2020-05-18T15:57:16.96 3.0 undecidable manual Sn -2.71 0
GU.RNCA.HHZ. 2020-05-18T15:57:01.27 3.0 negative manual Pg 13.47 0
ZM.T1368.EHZ. 2020-05-18T15:57:00.22 3.0 undecidable manual Sn 0.2 0
CR.ZAG.BHZ. 2020-05-18T15:56:49.26 3.0 undecidable manual Pn -1.84 0
CR.STON.BHZ. 2020-05-18T15:56:47.64 3.0 undecidable manual Pn -0.43 0
IV.MRVN.HHZ. 2020-05-18T15:56:46.89 3.0 undecidable manual Pn 5.12 0
IV.FIR.HHZ. 2020-05-18T15:56:45.09 3.0 undecidable manual Sn 0.68 0
IV.CSNT.HHZ. 2020-05-18T15:56:40.92 3.0 undecidable manual Sn 0.67 0
IV.EL6.EHZ. 2020-05-18T15:56:13.15 0.3 undecidable manual S 8 49.3173 50 0.45 64
IV.NARO.HHZ. 2020-05-18T15:56:10.72 3.0 undecidable manual P -1.9 0
IV.LNSS.HHZ. 2020-05-18T15:56:07.98 0.1 undecidable manual S 177 31.746 50 -0.03 96
IV.EL6.EHZ. 2020-05-18T15:56:06.06 0.1 undecidable manual P 8 49.3173 50 0.02 93
IV.CSP1.EHZ. 2020-05-18T15:56:06.68 0.3 undecidable manual S 34 27.1506 50 -0.1 72
IV.MMO1.EHZ. 2020-05-18T15:56:06.05 0.3 undecidable manual S 87 25.0527 50 -0.18 71
IV.MML1.HNE. 2020-05-18T15:56:06.04 0.3 undecidable manual S 351 25.2525 50 -0.22 70
IV.FDMO.HHE. 2020-05-18T15:56:03.82 0.1 undecidable manual S 19 17.3715 121 -0.14 96
IV.LNSS.HHZ. 2020-05-18T15:56:03.21 0.1 undecidable manual P 177 31.746 50 -0.12 94
IV.CESI.HHZ. 2020-05-18T15:56:03.44 0.1 undecidable manual S 324 15.873 123 -0.09 98
IV.CSP1.EHZ. 2020-05-18T15:56:02.54 0.1 undecidable manual P 34 27.1506 50 -0.08 96
IT.MTCL.HGN. 2020-05-18T15:56:02.22 0.1 undecidable manual S 353 11.7771 132 -0.18 96
IV.MMO1.EHZ. 2020-05-18T15:56:02.66 0.3 undecidable manual P 87 25.0527 50 0.36 68
IV.MML1.HNE. 2020-05-18T15:56:02.22 0.1 undecidable manual P 351 25.2525 50 -0.1 96
IV.NRCA.HHZ. 2020-05-18T15:56:01.81 0.1 undecidable manual S 128 9.879 137 -0.13 98
IV.FDMO.HHE. 2020-05-18T15:56:01.04 0.1 undecidable manual P 19 17.3715 121 0.05 98
IV.FEMA.HNN. 2020-05-18T15:56:01.65 0.1 undecidable manual S 17 8.4804 141 0.03 100
IV.CESI.HHZ. 2020-05-18T15:56:00.88 0.1 positive manual P 324 15.873 123 0.14 97
IT.MTCL.HGN. 2020-05-18T15:56:00.17 0.1 undecidable manual P 353 11.7771 132 0.08 98
IV.FEMA.HNN. 2020-05-18T15:55:59.88 0.1 undecidable manual P 17 8.4804 141 0.24 96
IV.NRCA.HHZ. 2020-05-18T15:55:59.94 0.1 negative manual P 128 9.879 137 0.12 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.4 0.00028000000000000003 0.1 AML other m 2020-05-18T15:56:02.13
IV.CESI.HHN. ML:1.3 0.00019 0.28 AML other m 2020-05-18T15:56:03.74
IV.NRCA.HHN. ML:1.4 0.00032888185 0.1408 AML other m 2020-05-18T15:56:01.88
IV.NRCA.HNE. ML:1.4 0.00027912799999999996 0.1024 AML other m 2020-05-18T15:56:02.09
IV.NRCA.HNN. ML:1.4 0.00030205065 0.128 AML other m 2020-05-18T15:56:01.88
IV.CESI.HHE. ML:1.1 0.000112514485 0.2304 AML other m 2020-05-18T15:56:03.99
IV.CESI.HNE. ML:1.0 0.000100972955 0.128 AML other m 2020-05-18T15:56:03.62
IV.CESI.HNN. ML:1.1 0.00011984533499999999 0.1792 AML other m 2020-05-18T15:56:03.89
IV.LNSS.HHE. ML:1.0 0.00004046107 0.2432 AML other m 2020-05-18T15:56:08.15
IV.LNSS.HHN. ML:1.0 0.000046438834999999996 0.1792 AML other m 2020-05-18T15:56:08.42
IV.LNSS.HNE. ML:1.6 0.00018341614 0.448 AML other m 2020-05-18T15:56:09.08
IV.LNSS.HNN. ML:1.0 0.000048856515 0.7168 AML other m 2020-05-18T15:56:08.43
IV.EL6.EHE. ML:1.0 0.000031453435 0.192 AML other m 2020-05-18T15:56:15.19
IV.EL6.EHN. ML:1.3 0.000052420657 0.2176 AML other m 2020-05-18T15:56:14.16
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