Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 30-10-2020 and time 05:41:07 (UTC) in region 1 km NE Ussita (MC)

A magnitude ML 1.6 earthquake occured in region: 1 km NE Ussita (MC), on

  • 30-10-2020 05:41:07 (UTC)
  • 30-10-2020 06:41:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9510, 13.1490 at 9 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 5 1107 1551
Castelsantangelo sul Nera MC 6 281 1832
Bolognola MC 8 142 1974
Acquacanina MC 9 121 2095
Fiastra MC 10 559 2654
Fiordimonte MC 11 202 2856
Preci PG 12 724 3580
Monte Cavallo MC 13 145 3725
Pieve Torina MC 13 1458 5183
Pievebovigliana MC 14 866 6049
Montemonaco AP 16 604 6653
Montefortino FM 16 1178 7831
Sarnano MC 16 3264 11095
Muccia MC 17 915 12010
Amandola FM 17 3629 15639
Norcia PG 18 4957 20596
Sellano PG 19 1079 21675
Montegallo AP 19 523 22198
Cessapalombo MC 20 512 22710

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
64 Km E of Perugia (166134 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
95 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 1.6 2020-10-30
05:41:07		 42.9508 13.1492 9 2021-02-26
14:56:09		 Bollettino Sismico Italiano INGV 85194481
Reviewed
Rev100 		ML 1.6 2020-10-30
05:41:07		 42.9443 13.1417 8 2020-10-30
06:37:38		 Sala Sismica INGV-Roma 84254681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-30 05:41:07 ± 0.04
Latitude 42.9508 ± 0.0027
Longitude 13.1492 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85194481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 274
Semi-minor axis of confidence ellipse (meter) 177
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 47
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 35
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.55218
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 85194481
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-04 08:56:02

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 84254681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-30 06:37:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2020-10-30T05:41:28.70 3.0 undecidable manual S -0.08 0
IV.TERO.HHZ. 2020-10-30T05:41:25.06 0.1 undecidable manual S 134 51.9036 50 0.39 86
IV.CAMP.HHZ. 2020-10-30T05:41:24.46 0.3 undecidable manual S 155 50.7159 50 0.12 68
IV.EL6.EHZ. 2020-10-30T05:41:22.26 0.3 undecidable manual S 355 42.1245 50 0.19 68
IV.SMA1.EHZ. 2020-10-30T05:41:21.09 0.6 undecidable manual S 157 38.628 50 -0.03 47
IV.ASSB.HHZ. 2020-10-30T05:41:21.79 0.3 undecidable manual S 285 41.1255 50 0.01 71
IV.T1299.HNN. 2020-10-30T05:41:21.06 0.3 undecidable manual S 163 36.741 50 0.44 65
IV.GAVE.EHZ. 2020-10-30T05:41:20.38 0.3 undecidable manual S 216 35.4423 50 0.12 70
IV.MURB.HHZ. 2020-10-30T05:41:19.00 0.1 undecidable manual P 305 61.2942 50 0 91
IV.SAP2.EHZ. 2020-10-30T05:41:18.41 3.0 undecidable manual S 0.47 0
IV.MTRA.EHZ. 2020-10-30T05:41:18.44 0.3 undecidable manual S 137 29.4483 106 -0.04 72
IV.MOMA.HHZ. 2020-10-30T05:41:17.28 0.1 undecidable manual P 251 49.8168 50 0.05 92
IV.TERO.HHZ. 2020-10-30T05:41:17.24 0.1 undecidable manual P 134 51.9036 50 -0.31 87
IV.ATCC.EHZ. 2020-10-30T05:41:16.98 0.1 undecidable manual P 302 48.8178 50 -0.08 92
IV.MNTT.EHZ. 2020-10-30T05:41:16.40 3.0 positive manual P 0.83 0
IV.MML1.HNE. 2020-10-30T05:41:16.48 0.1 undecidable manual S 321 23.0547 111 0.11 96
IV.CAMP.HHZ. 2020-10-30T05:41:16.96 0.1 negative manual P 155 50.7159 50 -0.4 86
IV.T1299.HNN. 2020-10-30T05:41:15.15 0.1 undecidable manual P 163 36.741 50 -0.06 95
IV.CESI.HHZ. 2020-10-30T05:41:15.88 0.1 undecidable manual S 287 20.7681 113 0.26 93
IV.SMA1.EHZ. 2020-10-30T05:41:15.11 0.1 negative manual P 157 38.628 50 -0.39 88
IV.LNSS.HNZ. 2020-10-30T05:41:15.66 0.3 undecidable manual P 193 39.627 50 0.01 71
IV.EL6.EHZ. 2020-10-30T05:41:15.79 0.1 undecidable manual P 355 42.1245 50 -0.26 90
IV.GUMA.HHZ. 2020-10-30T05:41:15.81 0.3 undecidable manual S 50 19.5693 114 0.58 65
IV.ASSB.HHZ. 2020-10-30T05:41:15.65 0.1 positive manual P 285 41.1255 50 -0.23 91
IV.PF6.EHN. 2020-10-30T05:41:15.75 0.1 undecidable manual S 10 21.0678 112 0.03 98
IV.GAVE.EHZ. 2020-10-30T05:41:14.89 0.1 positive manual P 216 35.4423 50 -0.11 94
IV.CSP1.EHZ. 2020-10-30T05:41:13.87 0.1 undecidable manual S 16 16.2726 118 -0.35 92
IV.MF5.EHZ. 2020-10-30T05:41:13.66 0.1 positive manual P 81 25.5522 109 0.44 89
IV.NRCA.HHZ. 2020-10-30T05:41:13.69 0.1 undecidable manual S 192 13.2756 123 0.36 93
IV.MMO1.EHZ. 2020-10-30T05:41:13.88 0.3 undecidable manual S 112 15.4734 119 -0.1 73
IV.MTRA.EHZ. 2020-10-30T05:41:13.82 0.1 positive manual P 137 29.4483 106 -0.15 94
IV.GUMA.HHZ. 2020-10-30T05:41:12.48 0.1 positive manual P 50 19.5693 114 0.38 91
IV.PF6.EHN. 2020-10-30T05:41:12.28 0.1 undecidable manual P 10 21.0678 112 -0.1 96
IV.CESI.HHZ. 2020-10-30T05:41:12.45 0.1 positive manual P 287 20.7681 113 0.13 96
IV.MML1.HNE. 2020-10-30T05:41:12.62 0.1 positive manual P 321 23.0547 111 -0.14 95
IV.NRCA.HHZ. 2020-10-30T05:41:11.06 0.1 negative manual P 192 13.2756 123 0.06 99
IT.MTCL.HGZ. 2020-10-30T05:41:11.01 0.1 undecidable manual P 292 13.0758 124 0.05 99
IV.FEMA.HNE. 2020-10-30T05:41:11.92 0.1 undecidable manual S 279 8.1807 137 -0.03 100
IV.MMO1.EHZ. 2020-10-30T05:41:11.35 0.1 negative manual P 112 15.4734 119 -0.03 99
IV.CSP1.EHZ. 2020-10-30T05:41:11.48 0.1 positive manual P 16 16.2726 118 -0.03 99
IV.MC2.EHZ. 2020-10-30T05:41:10.95 0.1 undecidable manual S 144 5.3946 148 -0.42 93
IV.FEMA.HNE. 2020-10-30T05:41:10.30 0.1 undecidable manual P 279 8.1807 137 0.1 99
IV.FDMO.HHN. 2020-10-30T05:41:10.48 0.1 undecidable manual P 332 10.7781 129 -0.1 98
IV.MC2.EHZ. 2020-10-30T05:41:09.77 0.1 negative manual P 144 5.3946 148 -0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:2.0 0.0012050000000000001 0.1 AML other m 2020-10-30T05:41:14.47
IV.NRCA.HHN. ML:1.8 0.0007495000000000001 1.2 AML other m 2020-10-30T05:41:14.05
IV.CSP1.EHE. ML:1.8 0.0005615 0.46 AML other m 2020-10-30T05:41:15.72
IV.CSP1.EHN. ML:1.7 0.000517 1.56 AML other m 2020-10-30T05:41:16.10
IV.CESI.HHN. ML:1.6 0.00029949999999999996 0.44 AML other m 2020-10-30T05:41:16.41
IV.GUMA.HHN. ML:1.8 0.0005214999999999999 0.62 AML other m 2020-10-30T05:41:16.31
IV.CESI.HNN. ML:1.7 0.000383 0.68 AML other m 2020-10-30T05:41:16.75
IV.CESI.HNE. ML:1.6 0.000299 0.54 AML other m 2020-10-30T05:41:17.38
IV.CESI.HHE. ML:1.5 0.00022799999999999999 0.62 AML other m 2020-10-30T05:41:17.35
IV.GUMA.HNN. ML:2.1 0.000917 0.7 AML other m 2020-10-30T05:41:17.54
IV.MF5.EHN. ML:1.4 0.0001535 0.28 AML other m 2020-10-30T05:41:18.73
IV.MF5.EHE. ML:1.7 0.00028100000000000005 0.22 AML other m 2020-10-30T05:41:18.73
IV.SAP2.EHE. ML:1.4 0.0001515 0.16 AML other m 2020-10-30T05:41:18.74
IV.MTRA.EHE. ML:1.6 0.000187 1.58 AML other m 2020-10-30T05:41:19.06
IV.MTRA.EHN. ML:1.6 0.000217 0.64 AML other m 2020-10-30T05:41:19.40
IV.GUMA.HHE. ML:1.7 0.0004005 0.42 AML other m 2020-10-30T05:41:19.46
IV.GAVE.EHE. ML:1.8 0.0002235 0.22 AML other m 2020-10-30T05:41:21.35
IV.GUMA.HNE. ML:1.6 0.00034399999999999996 0.44 AML other m 2020-10-30T05:41:21.60
IV.GAVE.EHN. ML:1.8 0.00028149999999999996 0.2 AML other m 2020-10-30T05:41:21.52
IV.SAP2.EHN. ML:2.1 0.0008205 0.3 AML other m 2020-10-30T05:41:21.64
IV.ASSB.HHN. ML:1.4 0.0000891 0.74 AML other m 2020-10-30T05:41:22.17
IV.SMA1.EHN. ML:1.2 0.00005855000000000001 0.44 AML other m 2020-10-30T05:41:23.42
IV.ASSB.HHE. ML:1.4 0.000096 0.66 AML other m 2020-10-30T05:41:23.94
IV.CAMP.HHN. ML:1.1 0.0000315 0.24 AML other m 2020-10-30T05:41:24.75
IV.CAMP.HHE. ML:1.2 0.0000435 0.2 AML other m 2020-10-30T05:41:25.60
IV.SMA1.EHE. ML:1.2 0.0000626 1.44 AML other m 2020-10-30T05:41:26.08
IV.ATCC.EHE. ML:1.4 0.00006875 1.02 AML other m 2020-10-30T05:41:26.09
IV.MOMA.HHE. ML:1.3 0.000052199999999999995 0.18 AML other m 2020-10-30T05:41:26.59
IV.ATCC.EHN. ML:1.4 0.00006425 0.44 AML other m 2020-10-30T05:41:26.67
IV.MOMA.HHN. ML:1.2 0.00004285 0.16 AML other m 2020-10-30T05:41:27.72
IV.MURB.HHN. ML:1.6 0.0000836 0.96 AML other m 2020-10-30T05:41:29.78
IV.MURB.HHE. ML:1.7 0.0001125 1.64 AML other m 2020-10-30T05:41:29.88
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