Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 11-01-2020 and time 22:36:39 (Italy) in region 4 km W Trevi (PG)

A magnitude ML 1.3 earthquake occured in region: 4 km W Trevi (PG), on

  • 11-01-2020 21:36:39 (UTC)
  • 11-01-2020 22:36:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8710, 12.6960 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
Trevi PG 4 8469 8469
Montefalco PG 4 5679 14148
Castel Ritaldi PG 6 3278 17426
Campello sul Clitunno PG 9 2442 19868
Foligno PG 10 57155 77023
Bevagna PG 10 5081 82104
Giano dell'Umbria PG 11 3846 85950
Gualdo Cattaneo PG 12 6155 92105
Spello PG 14 8645 100750
Spoleto PG 16 38218 138968
Cannara PG 17 4305 143273
Massa Martana PG 18 3770 147043
Vallo di Nera PG 18 364 147407
Cerreto di Spoleto PG 19 1075 148482
Sellano PG 19 1079 149561
Sant'Anatolia di Narco PG 19 564 150125

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km S of Foligno (57155 inhabitants)
35 Km N of Terni (111501 inhabitants)
36 Km SE of Perugia (166134 inhabitants)
70 Km NE of Viterbo (67173 inhabitants)
82 Km NW of L'Aquila (69753 inhabitants)
86 Km W of Teramo (54892 inhabitants)
94 Km SE of Arezzo (99543 inhabitants)
97 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 1.3 2020-01-11
21:36:39		 42.8713 12.6962 10 2020-01-11
21:43:29		 Sala Sismica INGV-Roma 75472031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-11 21:36:39 ± 0.04
Latitude 42.8713 ± 0.0018
Longitude 12.6962 ± 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 75472031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 193
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 291
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) 117
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.09803
Epicentral distance of station farthest from the epicenter (degree) 0.54499
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 75472031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-11 21:43:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-01-11T21:36:59.12 1.0 undecidable manual S 33 60.495 50 0.77 18
IV.MMO1.EHZ. 2020-01-11T21:36:56.26 0.6 undecidable manual S 86 51.3153 50 0.35 44
IV.CSP1.EHZ. 2020-01-11T21:36:55.46 0.6 undecidable manual S 59 48.0186 50 0.45 43
IV.FOSV.EHZ. 2020-01-11T21:36:55.30 0.6 undecidable manual S 6 47.3193 50 0.48 42
IV.ARRO.EHZ. 2020-01-11T21:36:51.28 0.6 undecidable manual S 170 32.9448 50 0.3 45
IV.ATCC.EHZ. 2020-01-11T21:36:51.64 0.6 undecidable manual S 353 35.1426 50 0.07 47
IV.FDMO.HHZ. 2020-01-11T21:36:51.83 0.6 undecidable manual S 60 36.6411 50 -0.16 47
IV.NRCA.HHZ. 2020-01-11T21:36:51.31 0.6 undecidable manual S 97 34.2435 50 -0.03 48
IV.FEMA.HNN. 2020-01-11T21:36:50.32 0.6 undecidable manual S 71 30.4473 50 0 49
IV.EL6.EHZ. 2020-01-11T21:36:50.38 0.1 undecidable manual P 33 60.495 50 0.01 92
IV.CESX.HHZ. 2020-01-11T21:36:50.08 0.6 undecidable manual S 197 30.4473 50 -0.26 46
IT.MTCL.HGN. 2020-01-11T21:36:49.49 0.6 undecidable manual S 61 28.1496 50 -0.22 47
IV.GAVE.HNE. 2020-01-11T21:36:49.16 0.6 undecidable manual S 141 25.5522 111 0.17 48
IV.MMO1.EHZ. 2020-01-11T21:36:48.90 0.1 undecidable manual P 86 51.3153 50 -0.06 92
IV.FOSV.EHZ. 2020-01-11T21:36:48.28 0.1 undecidable manual P 6 47.3193 50 -0.05 94
IV.CESI.HHZ. 2020-01-11T21:36:48.10 0.6 undecidable manual S 49 22.4553 114 0.11 48
IV.CSP1.EHZ. 2020-01-11T21:36:48.45 0.1 undecidable manual P 59 48.0186 50 0.01 94
IV.SNTG.HHZ. 2020-01-11T21:36:48.05 0.3 undecidable manual P 25 46.9197 50 -0.23 68
IV.NRCA.HHZ. 2020-01-11T21:36:46.12 0.1 undecidable manual P 97 34.2435 50 -0.21 92
IV.ARRO.EHZ. 2020-01-11T21:36:46.25 0.3 undecidable manual P 170 32.9448 50 0.13 71
IV.ATCC.EHZ. 2020-01-11T21:36:46.39 0.1 undecidable manual P 353 35.1426 50 -0.07 96
IV.ASSB.HHZ. 2020-01-11T21:36:46.83 0.6 undecidable manual S 351 19.2696 117 -0.14 48
IV.FDMO.HHZ. 2020-01-11T21:36:46.54 0.1 undecidable manual P 60 36.6411 50 -0.16 93
IT.GNU.HGN. 2020-01-11T21:36:45.15 0.6 undecidable manual S 234 12.6762 128 0.1 49
IV.CESX.HHZ. 2020-01-11T21:36:45.56 0.3 undecidable manual P 197 30.4473 50 -0.18 70
IV.MOMA.HHZ. 2020-01-11T21:36:45.15 0.3 undecidable manual S 234 12.6762 128 0.1 74
IT.MTCL.HGN. 2020-01-11T21:36:45.20 0.1 undecidable manual P 61 28.1496 50 -0.18 94
IV.GAVE.HNE. 2020-01-11T21:36:45.07 0.3 undecidable manual P 141 25.5522 111 0.11 72
IV.FEMA.HNN. 2020-01-11T21:36:45.67 0.3 undecidable manual P 71 30.4473 50 -0.06 72
IT.FOPC.HGE. 2020-01-11T21:36:44.56 0.6 undecidable manual S 3 10.878 132 -0.01 50
IV.CESI.HHZ. 2020-01-11T21:36:44.36 0.1 positive manual P 49 22.4553 114 -0.03 98
IV.ASSB.HHZ. 2020-01-11T21:36:43.78 0.1 undecidable manual P 351 19.2696 117 -0.02 99
IT.FOPC.HGE. 2020-01-11T21:36:42.51 0.1 undecidable manual P 3 10.878 132 0.09 99
IT.GNU.HGN. 2020-01-11T21:36:42.68 0.1 undecidable manual P 234 12.6762 128 -0.01 100
IV.MOMA.HHZ. 2020-01-11T21:36:42.70 0.1 positive manual P 234 12.6762 128 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHN. ML:1.3 0.000232 0.2 AML other m 2020-01-11T21:36:45.96
IV.MOMA.HHE. ML:1.3 0.0002375 0.22 AML other m 2020-01-11T21:36:46.79
IV.CESX.HHE. ML:1.2 0.00007980000000000002 1.74 AML other m 2020-01-11T21:36:50.10
IV.CESX.HHN. ML:1.2 0.0000784 0.72 AML other m 2020-01-11T21:36:51.28
IV.NRCA.HHN. ML:1.2 0.00006890000000000001 0.14 AML other m 2020-01-11T21:36:51.80
IV.NRCA.HHE. ML:1.2 0.00006345000000000001 1.86 AML other m 2020-01-11T21:36:54.99
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