Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 07-02-2021 and time 06:48:14 (Italy) in region 2 km N Ussita (MC)

A magnitude ML 1.9 earthquake occured in region: 2 km N Ussita (MC), on

  • 07-02-2021 05:48:14 (UTC)
  • 07-02-2021 06:48:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9610, 13.1370 at 8 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 2 444 444
Visso MC 5 1107 1551
Castelsantangelo sul Nera MC 7 281 1832
Bolognola MC 8 142 1974
Acquacanina MC 8 121 2095
Fiastra MC 9 559 2654
Fiordimonte MC 9 202 2856
Monte Cavallo MC 12 145 3001
Pieve Torina MC 12 1458 4459
Preci PG 12 724 5183
Pievebovigliana MC 12 866 6049
Muccia MC 16 915 6964
Sarnano MC 16 3264 10228
Montefortino FM 17 1178 11406
Montemonaco AP 17 604 12010
Amandola FM 18 3629 15639
Sellano PG 19 1079 16718
Norcia PG 19 4957 21675
Cessapalombo MC 19 512 22187
Serravalle di Chienti MC 20 1070 23257

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
63 Km E of Perugia (166134 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
97 Km NW of Montesilvano (53738 inhabitants)
99 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 1.9 2021-02-07
05:48:14		 42.9607 13.1367 8 2021-07-12
16:55:06		 Bollettino Sismico Italiano INGV 89089831
Reviewed
Rev100 		ML 1.8 2021-02-07
05:48:15		 42.9647 13.1383 7 2021-02-07
05:53:33		 Sala Sismica INGV-Roma 86899251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-07 05:48:14 ± 0.05
Latitude 42.9607 ± 0.0027
Longitude 13.1367 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89089831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 288
Semi-minor axis of confidence ellipse (meter) 206
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.06205
Epicentral distance of station farthest from the epicenter (degree) 0.55578
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 89089831
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-14 10:57:02

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 34
Type of magnitude ML
Reference to an origin 86899251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-07 05:53:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2021-02-07T05:48:35.06 0.1 undecidable manual S 345 61.6938 50 0.7 76
IV.FOSV.EHZ. 2021-02-07T05:48:31.02 0.1 undecidable manual S 321 47.9187 50 0.32 87
IV.CING.HNZ. 2021-02-07T05:48:30.21 0.1 undecidable manual S 6 46.3203 50 -0.04 93
IV.SMA1.EHZ. 2021-02-07T05:48:28.40 0.3 undecidable manual S 156 40.0266 50 -0.18 68
IV.ASSB.HHZ. 2021-02-07T05:48:28.62 0.1 undecidable manual S 283 39.8268 50 0.09 93
IV.EL6.EHZ. 2021-02-07T05:48:28.64 0.1 undecidable manual S 356 41.0256 50 -0.2 91
IV.LNSS.HHZ. 2021-02-07T05:48:28.96 0.1 undecidable manual S 191 40.4262 50 0.27 89
IV.T1299.HNN. 2021-02-07T05:48:28.25 0.1 undecidable manual S 162 38.1285 50 0.18 91
IT.FOPC.HGN. 2021-02-07T05:48:27.88 0.3 undecidable manual S 272 35.2425 50 0.59 62
IV.ARVD.HHZ. 2021-02-07T05:48:25.81 0.1 undecidable manual P 345 61.6938 50 -0.28 86
IV.MF5.EHZ. 2021-02-07T05:48:25.26 0.1 undecidable manual S 83 26.3514 107 0.86 75
IV.MTRA.EHE. 2021-02-07T05:48:25.84 0.3 undecidable manual S 137 30.9468 105 -0.08 71
IV.SAP2.EHZ. 2021-02-07T05:48:24.81 0.1 undecidable manual S 55 26.0517 107 0.51 87
IV.MNTT.EHZ. 2021-02-07T05:48:23.44 0.1 undecidable manual P 73 38.9277 50 0.85 74
IV.MDAR.HNZ. 2021-02-07T05:48:23.83 0.3 undecidable manual S 1 25.752 108 -0.35 68
IV.FOSV.EHZ. 2021-02-07T05:48:23.63 0.1 undecidable manual P 321 47.9187 50 -0.35 87
IV.CING.HNZ. 2021-02-07T05:48:23.19 0.1 undecidable manual P 6 46.3203 50 -0.53 83
IV.LNSS.HHZ. 2021-02-07T05:48:22.65 0.1 undecidable manual P 191 40.4262 50 -0.17 91
IV.T1299.HNN. 2021-02-07T05:48:22.05 0.1 undecidable manual P 162 38.1285 50 -0.41 87
IV.GUMA.HHZ. 2021-02-07T05:48:22.67 0.1 undecidable manual S 55 19.6692 113 0.46 89
IV.MML1.HNZ. 2021-02-07T05:48:22.83 0.1 undecidable manual S 322 21.5673 111 0.01 97
IV.SMA1.EHZ. 2021-02-07T05:48:22.22 0.3 undecidable manual P 156 40.0266 50 -0.54 63
IV.ASSB.HHZ. 2021-02-07T05:48:22.35 0.1 undecidable manual P 283 39.8268 50 -0.38 87
IV.PF6.EHZ. 2021-02-07T05:48:22.10 0.1 undecidable manual S 13 20.2686 112 -0.27 93
IV.EL6.EHZ. 2021-02-07T05:48:22.45 0.1 undecidable manual P 356 41.0256 50 -0.46 86
IV.CESI.HHZ. 2021-02-07T05:48:22.89 0.1 undecidable manual S 285 19.4694 113 0.76 80
IV.MNTP.HNZ. 2021-02-07T05:48:21.75 0.3 undecidable manual P 54 33.3444 104 0.07 71
IV.MMO1.EHZ. 2021-02-07T05:48:21.10 0.1 undecidable manual S 114 16.872 116 -0.22 94
IT.FOPC.HGN. 2021-02-07T05:48:21.85 0.3 undecidable manual P 272 35.2425 50 -0.17 69
IV.MF5.EHZ. 2021-02-07T05:48:20.59 0.1 positive manual P 83 26.3514 107 0.25 92
IV.NRCA.HHZ. 2021-02-07T05:48:20.88 0.1 undecidable manual S 187 14.1747 120 0.39 91
IV.SAP2.EHZ. 2021-02-07T05:48:20.73 0.1 undecidable manual P 55 26.0517 107 0.45 88
IV.MTRA.EHE. 2021-02-07T05:48:20.83 0.3 undecidable manual P 137 30.9468 105 -0.39 66
IT.MTCL.HGZ. 2021-02-07T05:48:20.00 0.1 undecidable manual S 288 11.7771 125 0.23 95
IV.MDAR.HNZ. 2021-02-07T05:48:20.33 0.3 undecidable manual P 1 25.752 108 0.11 71
IV.CSP1.EHZ. 2021-02-07T05:48:20.69 0.1 undecidable manual S 21 15.5733 118 -0.22 94
IV.CESI.HHZ. 2021-02-07T05:48:19.13 0.1 positive manual P 285 19.4694 113 0.1 96
IV.GUMA.HHZ. 2021-02-07T05:48:19.11 0.1 undecidable manual P 55 19.6692 113 0.03 97
IV.MML1.HNZ. 2021-02-07T05:48:19.33 0.1 undecidable manual P 322 21.5673 111 -0.1 96
IV.PF6.EHZ. 2021-02-07T05:48:18.87 0.1 undecidable manual P 13 20.2686 112 -0.31 92
IV.FEMA.HNZ. 2021-02-07T05:48:18.56 0.1 undecidable manual S 271 7.0929 139 0.01 100
IV.CSP1.EHZ. 2021-02-07T05:48:18.14 0.1 negative manual P 21 15.5733 118 -0.19 95
IV.FDMO.HHZ. 2021-02-07T05:48:18.84 0.1 undecidable manual S 335 9.2796 131 -0.27 94
IV.NRCA.HHZ. 2021-02-07T05:48:18.11 0.1 undecidable manual P 187 14.1747 120 0.02 98
IV.MMO1.EHZ. 2021-02-07T05:48:18.30 0.1 undecidable manual P 114 16.872 116 -0.26 93
IV.MC2.EHZ. 2021-02-07T05:48:18.23 0.1 undecidable manual S 142 6.8931 140 -0.29 94
IT.MTCL.HGZ. 2021-02-07T05:48:17.73 0.1 positive manual P 288 11.7771 125 0.06 98
IV.FEMA.HNZ. 2021-02-07T05:48:17.03 0.1 undecidable manual P 271 7.0929 139 0.06 99
IV.FDMO.HHZ. 2021-02-07T05:48:17.07 0.1 undecidable manual P 335 9.2796 131 -0.22 95
IV.MC2.EHZ. 2021-02-07T05:48:16.73 0.1 undecidable manual P 142 6.8931 140 -0.22 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.8 0.00105235425 0.24 AML other m 2021-02-07T05:48:19.40
IV.FDMO.HHN. ML:1.7 0.00071159075 0.2208 AML other m 2021-02-07T05:48:19.11
IV.NRCA.HNN. ML:2.0 0.0010506593500000001 0.3008 AML other m 2021-02-07T05:48:21.35
IV.NRCA.HHN. ML:2.0 0.00105378265 0.2816 AML other m 2021-02-07T05:48:21.34
IV.CSP1.EHN. ML:2.1 0.0013507955 0.3424 AML other m 2021-02-07T05:48:21.04
IV.NRCA.HHE. ML:2.1 0.0012590449999999999 0.1376 AML other m 2021-02-07T05:48:21.13
IV.NRCA.HNE. ML:2.0 0.0011911765000000001 0.16 AML other m 2021-02-07T05:48:21.13
IV.CESI.HNE. ML:2.0 0.0008080054 0.272 AML other m 2021-02-07T05:48:23.15
IV.CESI.HHE. ML:2.0 0.000838 0.26 AML other m 2021-02-07T05:48:23.15
IV.CESI.HHN. ML:2.0 0.000771 0.36 AML other m 2021-02-07T05:48:23.11
IV.GUMA.HNN. ML:1.9 0.0005999308 0.56 AML other m 2021-02-07T05:48:23.02
IV.GUMA.HHN. ML:1.9 0.0006453336 0.5792 AML other m 2021-02-07T05:48:23.04
IV.CSP1.EHE. ML:1.8 0.0006142151 0.6016 AML other m 2021-02-07T05:48:21.14
IV.GUMA.HNE. ML:2.0 0.00070179965 0.7104 AML other m 2021-02-07T05:48:23.38
IV.GUMA.HHE. ML:1.9 0.00065278545 0.3392 AML other m 2021-02-07T05:48:23.39
IV.MF5.EHE. ML:1.7 0.0002801722 0.2208 AML other m 2021-02-07T05:48:25.67
IV.ASSB.HHN. ML:2.0 0.0003085 0.22 AML other m 2021-02-07T05:48:29.24
IV.LNSS.HHN. ML:1.6 0.0001462879 0.2176 AML other m 2021-02-07T05:48:29.35
IV.LNSS.HHE. ML:1.5 0.00009841653 0.16 AML other m 2021-02-07T05:48:29.19
IV.FOSV.EHN. ML:1.3 0.00006171803 0.3616 AML other m 2021-02-07T05:48:31.42
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