Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 21-01-2020 and time 15:00:15 (Italy) in region 3 km N Ussita (MC)

A magnitude ML 1.4 earthquake occured in region: 3 km N Ussita (MC), on

  • 21-01-2020 14:00:15 (UTC)
  • 21-01-2020 15:00:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9700, 13.1340 at 9 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
Ussita MC 3 444 444
Visso MC 6 1107 1551
Acquacanina MC 8 121 1672
Fiastra MC 8 559 2231
Bolognola MC 8 142 2373
Fiordimonte MC 8 202 2575
Castelsantangelo sul Nera MC 9 281 2856
Pieve Torina MC 11 1458 4314
Monte Cavallo MC 11 145 4459
Pievebovigliana MC 11 866 5325
Preci PG 13 724 6049
Muccia MC 15 915 6964
Sarnano MC 16 3264 10228
Montefortino FM 17 1178 11406
Montemonaco AP 18 604 12010
Amandola FM 18 3629 15639
Cessapalombo MC 19 512 16151
Serravalle di Chienti MC 19 1070 17221
Sellano PG 19 1079 18300
Camerino MC 19 6974 25274
Gualdo MC 20 815 26089
Norcia PG 20 4957 31046

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
58 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
62 Km E of Perugia (166134 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
97 Km NW of Montesilvano (53738 inhabitants)
98 Km S of Fano (60888 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 2020-01-21
14:00:15		 42.9703 13.1342 9 2020-01-21
14:07:15		 Sala Sismica INGV-Roma 75703541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-21 14:00:15 ± 0.06
Latitude 42.9703 ± 0.0027
Longitude 13.1342 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75703541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 348
Semi-minor axis of confidence ellipse (meter) 121
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 151
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.35973
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 14
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 75703541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-21 14:07:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-01-21T14:00:28.72 0.6 undecidable manual S 356 39.9267 50 -0.02 47
IV.ASSB.HHZ. 2020-01-21T14:00:28.73 0.6 undecidable manual S 282 39.4272 50 0.13 46
IV.GAVE.EHZ. 2020-01-21T14:00:27.99 0.6 undecidable manual S 212 36.5412 50 0.15 46
IV.MF5.EHZ. 2020-01-21T14:00:25.70 0.6 undecidable manual S 86 26.4513 109 0.85 38
IV.GUMA.HHN. 2020-01-21T14:00:23.01 0.6 undecidable manual S 58 19.2696 115 0.5 44
IV.MNTT.EHZ. 2020-01-21T14:00:23.63 3.0 negative manual P 0.45 0
IV.ASSB.HHZ. 2020-01-21T14:00:22.87 1.0 positive manual P 282 39.4272 50 -0.05 23
IV.PF6.EHE. 2020-01-21T14:00:22.19 0.6 undecidable manual S 15 19.1697 115 -0.3 46
IV.GAVE.EHZ. 2020-01-21T14:00:22.30 0.1 undecidable manual P 212 36.5412 50 -0.17 92
IV.CESI.HHZ. 2020-01-21T14:00:22.75 0.6 undecidable manual S 282 19.0698 115 0.31 46
IV.EL6.EHZ. 2020-01-21T14:00:22.75 1.0 positive manual P 356 39.9267 50 -0.24 22
IV.NRCA.HHZ. 2020-01-21T14:00:21.56 0.6 undecidable manual S 186 15.2736 120 0.28 47
IV.MMO1.EHZ. 2020-01-21T14:00:21.57 0.6 undecidable manual S 117 17.4714 117 -0.4 45
IV.CSP1.EHZ. 2020-01-21T14:00:20.93 0.6 undecidable manual S 23 14.6742 121 -0.16 48
IV.MF5.EHZ. 2020-01-21T14:00:20.97 1.0 undecidable manual P 86 26.4513 109 0.22 23
IT.MTCL.HGE. 2020-01-21T14:00:20.30 0.6 undecidable manual S 283 11.2776 128 0.17 48
IV.CESI.HHZ. 2020-01-21T14:00:19.52 0.3 undecidable manual P 282 19.0698 115 0.16 71
IV.GUMA.HHN. 2020-01-21T14:00:19.56 0.1 undecidable manual P 58 19.2696 115 0.16 95
IV.FDMO.HHZ. 2020-01-21T14:00:19.19 0.6 undecidable manual S 333 8.2806 137 -0.17 48
IV.PF6.EHE. 2020-01-21T14:00:19.33 0.1 undecidable manual P 15 19.1697 115 -0.06 97
IV.FEMA.HNE. 2020-01-21T14:00:19.07 0.6 undecidable manual S 262 6.8931 142 0.01 50
IV.CSP1.EHZ. 2020-01-21T14:00:18.46 0.6 negative manual P 23 14.6742 121 -0.12 48
IV.NRCA.HHZ. 2020-01-21T14:00:18.59 0.3 positive manual P 186 15.2736 120 -0.1 73
IV.MMO1.EHZ. 2020-01-21T14:00:18.85 0.3 positive manual P 117 17.4714 117 -0.23 70
IT.MTCL.HGE. 2020-01-21T14:00:17.99 0.1 undecidable manual P 283 11.2776 128 -0.04 99
IV.FDMO.HHZ. 2020-01-21T14:00:17.36 1.0 positive manual P 333 8.2806 137 -0.22 24
IV.FEMA.HNE. 2020-01-21T14:00:17.40 0.1 undecidable manual P 262 6.8931 142 -0.01 100
IV.MC2.EHZ. 2020-01-21T14:00:17.28 0.3 negative manual P 146 7.881 138 -0.25 71
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.4 0.0003395 0.64 AML other m 2020-01-21T14:00:20.44
IV.FDMO.HHN. ML:1.2 0.000237 1.38 AML other m 2020-01-21T14:00:22.93
IV.NRCA.HHE. ML:1.8 0.0006094999999999999 0.7 AML other m 2020-01-21T14:00:22.45
IV.CSP1.EHE. ML:1.4 0.000248 0.38 AML other m 2020-01-21T14:00:22.56
IV.CSP1.EHN. ML:1.5 0.00033350000000000003 1.62 AML other m 2020-01-21T14:00:22.86
IV.CESI.HHE. ML:1.4 0.000189 0.34 AML other m 2020-01-21T14:00:23.15
IV.CESI.HHN. ML:1.5 0.0002445 0.82 AML other m 2020-01-21T14:00:23.67
IV.NRCA.HHN. ML:1.3 0.000209 0.5 AML other m 2020-01-21T14:00:23.69
IV.GAVE.EHE. ML:1.5 0.0001161 1.74 AML other m 2020-01-21T14:00:29.91
IV.GAVE.EHN. ML:1.5 0.00013000000000000002 0.28 AML other m 2020-01-21T14:00:29.22
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