Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 09-03-2020 and time 19:51:23 (Italy) in region 4 km SW Preci (PG)

A magnitude ML 1.4 earthquake occured in region: 4 km SW Preci (PG), on

  • 09-03-2020 18:51:23 (UTC)
  • 09-03-2020 19:51:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8610, 13.0020 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 4 724 724
Sellano PG 7 1079 1803
Cerreto di Spoleto PG 8 1075 2878
Norcia PG 11 4957 7835
Visso MC 11 1107 8942
Castelsantangelo sul Nera MC 13 281 9223
Ussita MC 15 444 9667
Monte Cavallo MC 15 145 9812
Vallo di Nera PG 15 364 10176
Cascia PG 16 3217 13393
Poggiodomo PG 17 117 13510
Campello sul Clitunno PG 19 2442 15952
Sant'Anatolia di Narco PG 20 564 16516

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Foligno (57155 inhabitants)
44 Km NE of Terni (111501 inhabitants)
57 Km E of Perugia (166134 inhabitants)
62 Km W of Teramo (54892 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
88 Km NE of Viterbo (67173 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
98 Km N of Guidonia Montecelio (88673 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 1.4 2020-03-09
18:51:23		 42.8612 13.0018 10 2020-03-09
18:59:06		 Sala Sismica INGV-Roma 77159031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-09 18:51:23 ± 0.06
Latitude 42.8612 ± 0.0036
Longitude 13.0018 ± 0.0061
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77159031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 508
Semi-minor axis of confidence ellipse (meter) 315
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 50
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.08723
Epicentral distance of station farthest from the epicenter (degree) 0.50182
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 77159031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-09 18:59:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2020-03-09T18:51:34.06 0.3 undecidable manual P 118 55.6998 50 0.09 69
IV.EL6.EHZ. 2020-03-09T18:51:33.35 0.3 undecidable manual P 9 52.503 50 -0.14 69
IV.CESI.HHZ. 2020-03-09T18:51:31.00 0.1 undecidable manual S 334 17.7711 120 0 100
IV.MF5.EHZ. 2020-03-09T18:51:31.87 0.6 negative manual P 69 39.7269 50 0.35 45
IV.FDMO.HHZ. 2020-03-09T18:51:31.57 0.1 undecidable manual S 20 20.6682 116 -0.3 94
IV.MC2.EHZ. 2020-03-09T18:51:30.59 0.1 undecidable manual S 70 16.1727 122 0.07 99
IV.ARRO.EHZ. 2020-03-09T18:51:30.96 0.1 undecidable manual P 212 36.741 50 -0.09 95
IT.MTCL.HGZ. 2020-03-09T18:51:29.92 0.1 undecidable manual S 359 14.6742 125 -0.17 97
IV.CSP1.EHZ. 2020-03-09T18:51:29.94 0.6 positive manual P 33 30.4473 50 -0.14 48
IV.LNSS.HHZ. 2020-03-09T18:51:29.68 0.1 undecidable manual P 174 28.8489 50 -0.15 95
IV.FEMA.HNZ. 2020-03-09T18:51:29.35 0.3 undecidable manual S 19 11.877 131 0.04 75
IV.CESI.HHZ. 2020-03-09T18:51:28.17 0.1 undecidable manual P 334 17.7711 120 0.19 96
IV.NRCA.HHZ. 2020-03-09T18:51:28.53 0.1 undecidable manual S 109 9.6792 137 -0.22 97
IV.FDMO.HHZ. 2020-03-09T18:51:28.43 0.1 positive manual P 20 20.6682 116 -0.06 98
IV.FEMA.HNZ. 2020-03-09T18:51:27.28 0.1 undecidable manual P 19 11.877 131 0.27 96
IT.MTCL.HGZ. 2020-03-09T18:51:27.59 0.1 undecidable manual P 359 14.6742 125 0.13 98
IV.MC2.EHZ. 2020-03-09T18:51:27.92 0.3 undecidable manual P 70 16.1727 122 0.21 72
IV.NRCA.HHZ. 2020-03-09T18:51:26.76 0.1 negative manual P 109 9.6792 137 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.6 0.00046646519999999996 0.1408 AML other m 2020-03-09T18:51:28.90
IV.NRCA.HHN. ML:1.5 0.00038143705 0.064 AML other m 2020-03-09T18:51:28.77
IV.CESI.HHE. ML:0.9 0.00006874064500000001 0.1024 AML other m 2020-03-09T18:51:31.25
IV.CESI.HHN. ML:1.3 0.000161097825 0.1024 AML other m 2020-03-09T18:51:31.48
IV.FDMO.HHE. ML:1.5 0.00022882755 0.1536 AML other m 2020-03-09T18:51:31.79
IV.FDMO.HHN. ML:1.2 0.0001181192 0.1152 AML other m 2020-03-09T18:51:32.29
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