Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 22-01-2020 and time 18:49:30 (UTC) in region 5 km W Visso (MC)

A magnitude ML 1.1 earthquake occured in region: 5 km W Visso (MC), on

  • 22-01-2020 18:49:30 (UTC)
  • 22-01-2020 19:49:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9270, 13.0290 at 11 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Visso MC 5 1107 1107
Preci PG 5 724 1831
Monte Cavallo MC 8 145 1976
Ussita MC 9 444 2420
Sellano PG 9 1079 3499
Castelsantangelo sul Nera MC 11 281 3780
Fiordimonte MC 13 202 3982
Pieve Torina MC 13 1458 5440
Cerreto di Spoleto PG 15 1075 6515
Pievebovigliana MC 16 866 7381
Norcia PG 16 4957 12338
Fiastra MC 16 559 12897
Acquacanina MC 17 121 13018
Serravalle di Chienti MC 17 1070 14088
Muccia MC 17 915 15003
Bolognola MC 18 142 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Foligno (57155 inhabitants)
51 Km NE of Terni (111501 inhabitants)
56 Km E of Perugia (166134 inhabitants)
63 Km W of Teramo (54892 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
94 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 1.1 2020-01-22
18:49:30		 42.927 13.0288 11 2020-01-22
19:19:19		 Sala Sismica INGV-Roma 75737211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-22 18:49:30 ± 0.03
Latitude 42.9270 ± 0.0018
Longitude 13.0288 ± 0.0025
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 75737211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 204
Semi-minor axis of confidence ellipse (meter) 189
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 322
Circular confidence region, given by single value of horizontal uncertainty (meter) 200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.35793
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 75737211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-22 19:19:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2020-01-22T18:49:43.96 0.1 undecidable manual S 250 39.7269 50 0.23 91
IV.GAVE.EHZ. 2020-01-22T18:49:40.46 0.1 undecidable manual S 203 28.2495 50 -0.21 94
IV.MMO1.EHZ. 2020-01-22T18:49:39.68 0.1 undecidable manual S 97 24.4533 50 0.04 98
IV.CSP1.EHZ. 2020-01-22T18:49:39.29 0.1 undecidable manual S 38 23.1546 50 -0.03 98
IV.MOMA.HHZ. 2020-01-22T18:49:38.21 0.6 positive manual P 250 39.7269 50 0.03 48
IV.NRCA.HHZ. 2020-01-22T18:49:36.37 0.1 undecidable manual S 146 12.4764 131 0.04 99
IV.CESI.HHZ. 2020-01-22T18:49:36.48 0.1 undecidable manual S 311 13.2756 129 -0.06 99
IV.FDMO.HHZ. 2020-01-22T18:49:36.46 0.1 undecidable manual S 21 13.0758 130 -0.01 100
IV.GAVE.EHZ. 2020-01-22T18:49:36.26 0.6 negative manual P 203 28.2495 50 -0.16 47
IV.MC2.EHZ. 2020-01-22T18:49:36.48 3.0 undecidable manual S -0.33 0
IV.CSP1.EHZ. 2020-01-22T18:49:35.61 0.6 positive manual P 38 23.1546 50 -0.02 49
IV.MMO1.EHZ. 2020-01-22T18:49:35.85 0.1 undecidable manual P 97 24.4533 50 0.03 98
IV.CESI.HHZ. 2020-01-22T18:49:34.00 1.0 undecidable manual P 311 13.2756 129 -0.03 25
IV.FDMO.HHZ. 2020-01-22T18:49:34.00 0.3 undecidable manual P 21 13.0758 130 0.01 75
IV.NRCA.HHZ. 2020-01-22T18:49:33.96 0.1 positive manual P 146 12.4764 131 0.05 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.0 0.0001038 0.2 AML other m 2020-01-22T18:49:36.55
IV.CESI.HHE. ML:1.0 0.00011149999999999999 0.24 AML other m 2020-01-22T18:49:36.80
IV.CESI.HHN. ML:1.3 0.00021349999999999999 0.1 AML other m 2020-01-22T18:49:36.68
IV.FDMO.HHE. ML:0.9 0.00007825 0.38 AML other m 2020-01-22T18:49:36.58
IV.NRCA.HHE. ML:1.1 0.000126 1.24 AML other m 2020-01-22T18:49:37.62
IV.NRCA.HHN. ML:1.1 0.000124 0.8 AML other m 2020-01-22T18:49:37.41
IV.GAVE.EHN. ML:1.1 0.0000606 0.26 AML other m 2020-01-22T18:49:41.27
IV.GAVE.EHE. ML:1.2 0.00008074999999999998 0.76 AML other m 2020-01-22T18:49:41.84
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