Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 13-03-2020 and time 20:50:46 (Italy) in region 4 km E Cerreto di Spoleto (PG)

A magnitude ML 1.4 earthquake occured in region: 4 km E Cerreto di Spoleto (PG), on

  • 13-03-2020 19:50:46 (UTC)
  • 13-03-2020 20:50:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8170, 12.9660 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
Cerreto di Spoleto PG 4 1075 1075
Sellano PG 9 1079 2154
Preci PG 9 724 2878
Vallo di Nera PG 10 364 3242
Norcia PG 11 4957 8199
Cascia PG 12 3217 11416
Poggiodomo PG 12 117 11533
Sant'Anatolia di Narco PG 14 564 12097
Campello sul Clitunno PG 15 2442 14539
Scheggino PG 16 461 15000
Visso MC 16 1107 16107
Castelsantangelo sul Nera MC 18 281 16388
Monteleone di Spoleto PG 18 599 16987
Trevi PG 19 8469 25456
Monte Cavallo MC 20 145 25601

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SE of Foligno (57155 inhabitants)
39 Km NE of Terni (111501 inhabitants)
57 Km SE of Perugia (166134 inhabitants)
63 Km NW of L'Aquila (69753 inhabitants)
63 Km W of Teramo (54892 inhabitants)
83 Km NE of Viterbo (67173 inhabitants)
93 Km N of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
100 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
Reviewed
Rev100 		ML 1.4 2020-03-13
19:50:46		 42.8173 12.9655 10 2020-03-13
20:03:49		 Sala Sismica INGV-Roma 77240871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-13 19:50:46 ± 0.04
Latitude 42.8173 ± 0.0018
Longitude 12.9655 ± 0.0037
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 77240871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 221
Semi-minor axis of confidence ellipse (meter) 180
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 67
Circular confidence region, given by single value of horizontal uncertainty (meter) 220.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.11062
Epicentral distance of station farthest from the epicenter (degree) 0.52161
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 77240871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-13 20:03:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-03-13T19:51:04.62 0.6 undecidable manual S 11 57.8976 50 0.31 44
IV.TERO.HHZ. 2020-03-13T19:51:03.89 0.3 undecidable manual S 112 56.2992 50 0 71
IV.ATCC.EHZ. 2020-03-13T19:51:02.09 0.6 undecidable manual S 327 48.618 50 0.26 46
IV.SMA1.EHZ. 2020-03-13T19:50:59.03 0.6 undecidable manual S 124 36.5412 50 0.41 45
IV.RM33.EHZ. 2020-03-13T19:50:59.59 0.6 undecidable manual S 149 39.8268 50 0.11 48
IV.CSP1.EHZ. 2020-03-13T19:50:58.40 0.3 undecidable manual S 32 36.1416 50 -0.1 72
IV.MOMA.HHZ. 2020-03-13T19:50:57.56 0.6 undecidable manual S 267 32.2455 50 0.1 48
IV.TERO.HHZ. 2020-03-13T19:50:56.24 0.3 undecidable manual P 112 56.2992 50 -0.12 69
IV.MMO1.EHZ. 2020-03-13T19:50:56.83 0.6 undecidable manual S 73 30.747 50 -0.24 47
IV.EL6.EHZ. 2020-03-13T19:50:56.55 0.3 undecidable manual P 11 57.8976 50 -0.05 70
IV.ARRO.EHZ. 2020-03-13T19:50:56.94 0.3 undecidable manual S 212 31.0467 50 -0.21 71
IV.ATCC.EHZ. 2020-03-13T19:50:55.11 0.3 undecidable manual P 327 48.618 50 -0.07 71
IV.FDMO.HHZ. 2020-03-13T19:50:55.49 0.6 undecidable manual S 22 26.2515 110 -0.28 47
IV.LNSS.HHZ. 2020-03-13T19:50:55.07 0.3 undecidable manual S 166 24.5532 111 -0.16 73
IV.MC2.EHZ. 2020-03-13T19:50:54.22 0.6 undecidable manual S 60 20.9679 115 0.14 49
IV.CESI.HHZ. 2020-03-13T19:50:54.11 0.3 undecidable manual S 347 21.3675 114 -0.1 74
IV.CSP1.EHZ. 2020-03-13T19:50:53.06 0.3 undecidable manual P 32 36.1416 50 -0.19 71
IV.FEMA.HNZ. 2020-03-13T19:50:53.06 0.3 undecidable manual S 23 17.4714 119 0.07 75
IV.SMA1.EHZ. 2020-03-13T19:50:53.44 0.3 undecidable manual P 124 36.5412 50 0.12 72
IT.MTCL.HGZ. 2020-03-13T19:50:53.51 0.6 undecidable manual S 8 19.7691 116 -0.2 49
IV.RM33.EHZ. 2020-03-13T19:50:53.93 0.3 undecidable manual P 149 39.8268 50 0.11 72
IV.MOMA.HHZ. 2020-03-13T19:50:52.81 0.3 undecidable manual P 267 32.2455 50 0.16 72
IV.ARRO.EHZ. 2020-03-13T19:50:52.37 0.3 undecidable manual P 212 31.0467 50 -0.1 73
IV.MMO1.EHZ. 2020-03-13T19:50:52.15 0.3 undecidable manual P 73 30.747 50 -0.28 70
IV.NRCA.HHZ. 2020-03-13T19:50:51.44 0.3 undecidable manual S 81 12.2766 128 -0.04 76
IV.LNSS.HHZ. 2020-03-13T19:50:51.33 0.3 undecidable manual P 166 24.5532 111 -0.03 75
IV.FDMO.HHZ. 2020-03-13T19:50:51.53 0.3 undecidable manual P 22 26.2515 110 -0.15 73
IV.CESI.HHZ. 2020-03-13T19:50:50.86 0.1 undecidable manual P 347 21.3675 114 0.08 99
IT.MTCL.HGZ. 2020-03-13T19:50:50.54 0.1 undecidable manual P 8 19.7691 116 0.05 100
IV.MC2.EHZ. 2020-03-13T19:50:50.83 0.1 undecidable manual P 60 20.9679 115 0.13 98
IV.FEMA.HNZ. 2020-03-13T19:50:50.26 0.3 undecidable manual P 23 17.4714 119 0.19 73
IV.NRCA.HHZ. 2020-03-13T19:50:49.39 0.1 positive manual P 81 12.2766 128 0.2 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.6 0.0004825 0.1 AML other m 2020-03-13T19:50:51.62
IV.NRCA.HHE. ML:1.5 0.0003715 0.2 AML other m 2020-03-13T19:50:51.74
IV.CESI.HHN. ML:1.3 0.0001369 0.18 AML other m 2020-03-13T19:50:54.44
IV.CESI.HHE. ML:1.0 0.00006755 0.24 AML other m 2020-03-13T19:50:54.47
IV.LNSS.HHN. ML:1.4 0.0001615 0.16 AML other m 2020-03-13T19:50:55.66
IV.LNSS.HHE. ML:1.5 0.000203 0.14 AML other m 2020-03-13T19:50:55.65
IV.FDMO.HHE. ML:1.4 0.0001395 0.16 AML other m 2020-03-13T19:50:55.64
IV.FDMO.HHN. ML:1.2 0.00010200000000000001 0.14 AML other m 2020-03-13T19:50:55.76
IV.NRCA.HNE. ML:1.4 0.00030911575 0.0896 AML other m 2020-03-13T19:50:51.74
IV.NRCA.HNN. ML:1.6 0.00043391905 0.1024 AML other m 2020-03-13T19:50:51.63
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