Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 12-02-2020 and time 09:22:47 (Italy) in region 1 km NW Ussita (MC)

A magnitude ML 0.9 earthquake occured in region: 1 km NW Ussita (MC), on

  • 12-02-2020 08:22:47 (UTC)
  • 12-02-2020 09:22:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9520, 13.1260 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 1 444 444
Visso MC 4 1107 1551
Castelsantangelo sul Nera MC 7 281 1832
Bolognola MC 10 142 1974
Acquacanina MC 10 121 2095
Fiastra MC 10 559 2654
Fiordimonte MC 10 202 2856
Preci PG 11 724 3580
Monte Cavallo MC 11 145 3725
Pieve Torina MC 12 1458 5183
Pievebovigliana MC 13 866 6049
Muccia MC 16 915 6964
Sarnano MC 17 3264 10228
Montemonaco AP 17 604 10832
Sellano PG 18 1079 11911
Montefortino FM 18 1178 13089
Norcia PG 18 4957 18046
Amandola FM 19 3629 21675
Serravalle di Chienti MC 20 1070 22745

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
62 Km E of Perugia (166134 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
97 Km NW of Montesilvano (53738 inhabitants)
100 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
Bulletin
Rev1000 		ML 0.9 2020-02-12
08:22:47		 42.9517 13.1263 10 2020-07-18
21:08:23		 Bollettino Sismico Italiano INGV 77048211
Reviewed
Rev100 		ML 1.0 2020-02-12
08:22:47		 42.9482 13.1197 11 2020-02-12
08:32:31		 Sala Sismica INGV-Roma 76455751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-12 08:22:47 ± 0.07
Latitude 42.9517 ± 0.0027
Longitude 13.1263 ± 0.0037
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77048211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 316
Semi-minor axis of confidence ellipse (meter) 92
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 230
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
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) 0.05666
Epicentral distance of station farthest from the epicenter (degree) 0.43347
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 77048211
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-05 14:18:33

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 76455751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-12 08:32:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HNZ. 2020-02-12T08:22:56.20 0.6 undecidable manual P 250 48.1185 50 -0.05 47
IV.GUMA.HHZ. 2020-02-12T08:22:55.54 0.3 undecidable manual S 54 20.9679 115 0.33 69
IV.LNSS.HNZ. 2020-02-12T08:22:55.29 0.6 undecidable manual P 190 39.3273 50 0.4 44
IV.PF6.EHZ. 2020-02-12T08:22:55.04 0.3 undecidable manual S 15 21.3675 114 -0.31 70
IV.MML1.HNZ. 2020-02-12T08:22:55.54 0.3 undecidable manual S 325 21.867 114 0.03 74
IV.GAVE.EHN. 2020-02-12T08:22:54.35 0.1 undecidable manual P 213 34.4433 50 0.21 92
IV.CSP1.EHZ. 2020-02-12T08:22:54.01 0.3 undecidable manual S 22 16.7721 120 0.08 73
IV.CESI.HHZ. 2020-02-12T08:22:54.52 0.3 undecidable manual S 288 18.9699 117 -0.06 74
IV.MMO1.HNZ. 2020-02-12T08:22:53.81 0.3 undecidable manual S 110 17.2716 119 -0.26 71
IV.FDMO.HHZ. 2020-02-12T08:22:52.08 0.3 undecidable manual S 341 9.879 134 0.08 74
IT.MTCL.HGZ. 2020-02-12T08:22:52.30 0.1 undecidable manual S 295 11.2776 130 -0.06 99
IV.NRCA.HHZ. 2020-02-12T08:22:52.49 0.1 undecidable manual S 184 13.1757 126 -0.37 93
IV.MF5.EHZ. 2020-02-12T08:22:52.97 0.6 undecidable manual P 81 27.3504 109 -0.05 48
IV.PF6.EHZ. 2020-02-12T08:22:51.51 0.3 undecidable manual P 15 21.3675 114 -0.4 68
IV.MMO1.HNZ. 2020-02-12T08:22:51.01 0.1 undecidable manual P 110 17.2716 119 -0.17 96
IV.MML1.HNZ. 2020-02-12T08:22:51.76 0.3 undecidable manual P 325 21.867 114 -0.25 70
IV.CSP1.EHZ. 2020-02-12T08:22:51.06 0.1 undecidable manual P 22 16.7721 120 -0.03 99
IV.GUMA.HHZ. 2020-02-12T08:22:51.91 0.3 undecidable manual P 54 20.9679 115 0.08 73
IV.FEMA.HNZ. 2020-02-12T08:22:51.47 0.3 undecidable manual S 281 6.2937 147 0.28 72
IV.CESI.HHZ. 2020-02-12T08:22:51.37 0.1 undecidable manual P 288 18.9699 117 -0.1 97
IV.MC2.EHZ. 2020-02-12T08:22:51.66 0.3 undecidable manual S 131 6.7932 145 0.38 70
IV.NRCA.HHZ. 2020-02-12T08:22:50.32 0.1 undecidable manual P 184 13.1757 126 -0.15 97
IV.FDMO.HHZ. 2020-02-12T08:22:50.19 0.3 undecidable manual P 341 9.879 134 0.21 72
IT.MTCL.HGZ. 2020-02-12T08:22:50.16 0.1 undecidable manual P 295 11.2776 130 -0.03 100
IV.FEMA.HNZ. 2020-02-12T08:22:49.73 0.3 undecidable manual P 281 6.2937 147 0.22 73
IV.MC2.EHZ. 2020-02-12T08:22:49.79 0.1 undecidable manual P 131 6.7932 145 0.22 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.8 0.00008282107999999999 0.16 AML other m 2020-02-12T08:22:52.31
IV.FDMO.HHE. ML:0.9 0.00009366848999999999 0.1408 AML other m 2020-02-12T08:22:52.34
IV.CESI.HNE. ML:1.0 0.00008556934 0.5312 AML other m 2020-02-12T08:22:53.08
IV.CESI.HHN. ML:0.8 0.0000460214005 0.1216 AML other m 2020-02-12T08:22:54.72
IV.CESI.HHE. ML:0.6 0.000034503928499999995 0.0768 AML other m 2020-02-12T08:22:54.93
IV.CESI.HNN. ML:1.1 0.00010068684 0.5184 AML other m 2020-02-12T08:22:56.44
IV.MF5.EHE. ML:1.0 0.00006098321099999999 0.2176 AML other m 2020-02-12T08:22:58.30
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