Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 21-01-2020 and time 15:41:09 (Italy) in region 3 km NW Ussita (MC)

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

  • 21-01-2020 14:41:09 (UTC)
  • 21-01-2020 15:41:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9620, 13.1040 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.

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
Ussita MC 4 444 444
Visso MC 4 1107 1551
Castelsantangelo sul Nera MC 8 281 1832
Fiordimonte MC 9 202 2034
Monte Cavallo MC 9 145 2179
Fiastra MC 9 559 2738
Acquacanina MC 10 121 2859
Pieve Torina MC 10 1458 4317
Preci PG 11 724 5041
Bolognola MC 11 142 5183
Pievebovigliana MC 11 866 6049
Muccia MC 14 915 6964
Sellano PG 16 1079 8043
Serravalle di Chienti MC 17 1070 9113
Sarnano MC 18 3264 12377
Norcia PG 19 4957 17334
Montefortino FM 20 1178 18512
Montemonaco AP 20 604 19116
Camerino MC 20 6974 26090

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
58 Km NE of Terni (111501 inhabitants)
60 Km NW of Teramo (54892 inhabitants)
60 Km E of Perugia (166134 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
98 Km S of Fano (60888 inhabitants)
99 Km NW of Montesilvano (53738 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
14:41:09		 42.9618 13.1035 9 2020-01-21
14:47:41		 Sala Sismica INGV-Roma 75703721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-21 14:41:09 ± 0.06
Latitude 42.9618 ± 0.0027
Longitude 13.1035 ± 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 75703721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 348
Semi-minor axis of confidence ellipse (meter) 248
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
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) 60
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.03957
Epicentral distance of station farthest from the epicenter (degree) 0.36692
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 0.1
Num. used stations 14
Type of magnitude ML
Reference to an origin 75703721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-21 14:47:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2020-01-21T14:41:20.86 0.6 undecidable manual S 210 34.4433 50 -0.25 47
IV.MF5.EHZ. 2020-01-21T14:41:20.09 0.1 undecidable manual S 84 29.0487 107 0.5 85
IV.MMO1.EHZ. 2020-01-21T14:41:16.16 0.3 undecidable manual S 111 19.4694 115 -0.3 69
IV.PF6.EHZ. 2020-01-21T14:41:16.50 0.3 undecidable manual S 21 20.868 114 -0.42 68
IV.EL6.EHZ. 2020-01-21T14:41:16.72 0.3 undecidable manual P 360 40.7259 50 -0.26 70
IV.MF5.EHZ. 2020-01-21T14:41:15.25 0.1 undecidable manual P 84 29.0487 107 0.13 94
IV.CSP1.EHZ. 2020-01-21T14:41:15.47 0.6 undecidable manual S 30 16.5723 119 -0.12 48
IV.GAVE.EHZ. 2020-01-21T14:41:15.84 0.1 undecidable manual P 210 34.4433 50 -0.16 96
IV.CESI.HHZ. 2020-01-21T14:41:15.66 0.6 undecidable manual S 287 16.872 118 0 50
IV.NRCA.HHZ. 2020-01-21T14:41:14.76 0.6 undecidable manual S 176 14.2746 122 -0.13 48
IV.CESI.HHZ. 2020-01-21T14:41:13.02 0.1 undecidable manual P 287 16.872 118 0.16 96
IV.MC2.EHZ. 2020-01-21T14:41:13.60 0.1 undecidable manual S 129 8.88 136 0.16 100
IT.MTCL.HGZ. 2020-01-21T14:41:13.52 0.6 undecidable manual S 293 9.1797 135 0.02 50
IV.MMO1.EHZ. 2020-01-21T14:41:13.21 0.1 undecidable manual P 111 19.4694 115 -0.11 96
IV.FDMO.HHZ. 2020-01-21T14:41:13.18 0.3 undecidable manual S 351 8.3805 137 -0.13 73
IV.PF6.EHZ. 2020-01-21T14:41:13.69 0.1 undecidable manual P 21 20.868 114 0.11 96
IV.NRCA.HHZ. 2020-01-21T14:41:12.12 0.3 undecidable manual P 176 14.2746 122 -0.29 70
IV.FEMA.HNZ. 2020-01-21T14:41:12.61 0.6 undecidable manual S 270 4.3956 154 0.09 51
IV.CSP1.EHZ. 2020-01-21T14:41:12.82 0.3 undecidable manual P 30 16.5723 119 0.01 74
IV.FDMO.HHZ. 2020-01-21T14:41:11.55 0.1 undecidable manual P 351 8.3805 137 0.05 100
IV.FEMA.HNZ. 2020-01-21T14:41:11.27 0.3 undecidable manual P 270 4.3956 154 0.23 73
IV.MC2.EHZ. 2020-01-21T14:41:11.73 0.1 undecidable manual P 129 8.88 136 0.16 98
IT.MTCL.HGZ. 2020-01-21T14:41:11.76 0.1 undecidable manual P 293 9.1797 135 0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.2 0.000247 0.2 AML other m 2020-01-21T14:41:13.18
IV.FDMO.HHN. ML:1.3 0.00027 0.16 AML other m 2020-01-21T14:41:13.43
IV.CSP1.EHE. ML:1.5 0.00026700000000000004 1.42 AML other m 2020-01-21T14:41:15.11
IV.CESI.HHE. ML:1.2 0.0001305 0.4 AML other m 2020-01-21T14:41:16.23
IV.CESI.HHN. ML:1.4 0.00022649999999999998 0.28 AML other m 2020-01-21T14:41:16.08
IV.CSP1.EHN. ML:1.4 0.0002315 0.42 AML other m 2020-01-21T14:41:16.28
IV.GAVE.EHE. ML:1.6 0.00015429999999999998 0.12 AML other m 2020-01-21T14:41:21.20
IV.GAVE.EHN. ML:1.5 0.000133 0.76 AML other m 2020-01-21T14:41:21.82
IV.NRCA.HHE. ML:1.3 0.0002267132 0.1216 AML other m 2020-01-21T14:41:15.83
IV.NRCA.HHN. ML:1.4 0.00029129255 0.096 AML other m 2020-01-21T14:41:14.98
IV.NRCA.HNE. ML:1.4 0.00022815410000000003 0.1216 AML other m 2020-01-21T14:41:15.83
IV.NRCA.HNN. ML:1.4 0.0002823841 0.1024 AML other m 2020-01-21T14:41:15.03
IV.GAVE.HNE. ML:1.6 0.00016069630000000002 0.1408 AML other m 2020-01-21T14:41:21.19
IV.GAVE.HNN. ML:1.3 0.00008602849000000002 0.0768 AML other m 2020-01-21T14:41:21.73
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