Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 10-09-2021 and time 14:55:40 (Italy) in region 2 km N Ussita (MC)

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

  • 10-09-2021 12:55:40 (UTC)
  • 10-09-2021 14:55:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9600, 13.1450 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 2 444 444
Visso MC 6 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 10 202 2856
Monte Cavallo MC 12 145 3001
Pieve Torina MC 12 1458 4459
Preci PG 12 724 5183
Pievebovigliana MC 13 866 6049
Sarnano MC 15 3264 9313
Muccia MC 16 915 10228
Montefortino FM 16 1178 11406
Montemonaco AP 16 604 12010
Amandola FM 17 3629 15639
Norcia PG 19 4957 20596
Cessapalombo MC 19 512 21108
Sellano PG 19 1079 22187
Gualdo MC 20 815 23002

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
64 Km E of Perugia (166134 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
96 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 2021-09-10
12:55:40		 42.9595 13.1447 9 2022-03-30
13:04:39		 Bollettino Sismico Italiano INGV 101410171
Reviewed
Rev100 		ML 1.9 2021-09-10
12:55:40		 42.9612 13.144 9 2021-09-10
13:04:21		 Sala Sismica INGV-Roma 95266141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-10 12:55:40 ± 0.04
Latitude 42.9595 ± 0.0027
Longitude 13.1447 ± 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 101410171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 286
Semi-minor axis of confidence ellipse (meter) 247
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 38
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) 35
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 45
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.72575
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 68
Type of magnitude ML
Reference to an origin 101410171
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-24 12:24:43

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 60
Type of magnitude ML
Reference to an origin 95266141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-10 13:04:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SFI.EHZ. 2021-09-10T12:56:02.81 3.0 negative manual P -1.85 0
IV.MPAG.EHZ. 2021-09-10T12:55:54.78 0.3 undecidable manual P 337 80.5638 50 0.66 56
IV.EL6.EHZ. 2021-09-10T12:55:54.11 0.6 undecidable manual S 355 41.1255 50 0.2 45
IV.ASSB.HHZ. 2021-09-10T12:55:54.16 0.6 undecidable manual S 283 40.5261 50 0.44 43
IV.GAVE.EHZ. 2021-09-10T12:55:53.03 0.3 undecidable manual S 215 35.9418 50 0.51 64
IV.SNTG.HHZ. 2021-09-10T12:55:53.04 0.6 undecidable manual S 333 36.741 50 0.32 45
IV.MTRA.EHZ. 2021-09-10T12:55:51.07 0.3 undecidable manual S 138 30.4473 50 0.03 72
IV.MURB.HHZ. 2021-09-10T12:55:51.13 0.3 undecidable manual P 304 60.495 50 0.1 67
IV.ARVD.HHZ. 2021-09-10T12:55:51.09 0.3 undecidable manual P 345 61.9935 50 -0.17 66
IV.CESX.HHZ. 2021-09-10T12:55:50.79 0.3 undecidable manual P 230 59.7957 50 -0.14 67
IV.MF5.EHZ. 2021-09-10T12:55:50.31 0.3 undecidable manual S 83 25.752 110 0.75 59
IV.MOMA.HHZ. 2021-09-10T12:55:49.37 0.3 undecidable manual P 250 49.8168 50 -0.01 70
IV.CAMP.HHZ. 2021-09-10T12:55:49.33 0.3 undecidable manual P 155 51.7038 50 -0.35 65
IV.ATCC.EHZ. 2021-09-10T12:55:49.20 0.3 undecidable manual P 302 47.9187 50 0.1 69
IV.MNTT.EHZ. 2021-09-10T12:55:48.32 0.6 undecidable manual P 73 38.3283 50 0.71 39
IV.CESI.HHZ. 2021-09-10T12:55:48.10 0.3 undecidable manual S 285 20.1687 115 0.36 68
IV.MML1.EHZ. 2021-09-10T12:55:48.45 0.3 undecidable manual S 321 22.0668 113 0.08 72
IV.CING.HHZ. 2021-09-10T12:55:48.54 0.3 undecidable manual P 5 46.3203 50 -0.31 66
IV.SNTG.HHZ. 2021-09-10T12:55:47.07 0.3 undecidable manual P 333 36.741 50 -0.29 67
IV.GUMA.HHZ. 2021-09-10T12:55:47.90 0.3 undecidable manual S 53 19.2696 116 0.44 67
IV.ASSB.HHZ. 2021-09-10T12:55:47.79 0.3 undecidable manual P 283 40.5261 50 -0.16 69
IV.SMA1.EHZ. 2021-09-10T12:55:47.52 0.3 undecidable manual P 157 39.627 50 -0.3 67
IV.LNSS.HHZ. 2021-09-10T12:55:47.79 0.3 undecidable manual P 192 40.4262 50 -0.16 69
IV.GAVE.EHZ. 2021-09-10T12:55:47.16 0.1 undecidable manual P 215 35.9418 50 -0.09 94
IV.PF6.EHE. 2021-09-10T12:55:47.50 0.3 undecidable manual S 11 20.1687 115 -0.26 70
IV.EL6.EHZ. 2021-09-10T12:55:47.76 0.3 undecidable manual P 355 41.1255 50 -0.29 67
IV.NRCA.HHZ. 2021-09-10T12:55:46.09 0.6 undecidable manual S 190 14.1747 123 0.16 48
IV.CSP1.EHZ. 2021-09-10T12:55:46.25 0.3 undecidable manual S 18 15.4734 121 -0.06 73
IV.MTRA.EHZ. 2021-09-10T12:55:46.11 0.1 undecidable manual P 138 30.4473 50 -0.29 91
IV.MMO1.EHZ. 2021-09-10T12:55:46.35 0.3 undecidable manual S 114 16.2726 120 -0.19 71
IV.MF5.EHZ. 2021-09-10T12:55:45.75 0.1 undecidable manual P 83 25.752 110 0.21 93
IT.MTCL.HGZ. 2021-09-10T12:55:45.55 0.3 undecidable manual S 288 12.3765 127 0.13 73
IV.MML1.EHZ. 2021-09-10T12:55:44.72 0.1 negative manual P 321 22.0668 113 -0.14 95
IV.MC2.EHZ. 2021-09-10T12:55:44.29 0.3 undecidable manual S 146 6.3936 145 0.32 70
IV.PF6.EHE. 2021-09-10T12:55:44.21 0.1 undecidable manual P 11 20.1687 115 -0.29 92
IV.FDMO.HHZ. 2021-09-10T12:55:44.36 0.6 undecidable manual S 331 9.6792 134 -0.35 46
IV.GUMA.HHZ. 2021-09-10T12:55:44.49 0.1 negative manual P 53 19.2696 116 0.16 95
IV.FEMA.HNZ. 2021-09-10T12:55:44.23 0.3 undecidable manual S 272 7.6812 140 0 75
IV.CESI.HHZ. 2021-09-10T12:55:44.57 0.1 undecidable manual P 285 20.1687 115 0.08 97
IV.MMO1.EHZ. 2021-09-10T12:55:43.63 0.1 negative manual P 114 16.2726 120 -0.17 95
IT.MTCL.HGZ. 2021-09-10T12:55:43.19 0.1 undecidable manual P 288 12.3765 127 0.04 99
IV.NRCA.HHZ. 2021-09-10T12:55:43.43 0.1 undecidable manual P 190 14.1747 123 -0.02 99
IV.CSP1.EHZ. 2021-09-10T12:55:43.54 0.1 negative manual P 18 15.4734 121 -0.13 96
IV.FEMA.HNZ. 2021-09-10T12:55:42.48 0.1 undecidable manual P 272 7.6812 140 0.01 100
IV.MC2.EHZ. 2021-09-10T12:55:42.06 0.1 positive manual P 146 6.3936 145 -0.25 95
IV.FDMO.HHZ. 2021-09-10T12:55:42.45 0.1 undecidable manual P 331 9.6792 134 -0.29 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNN. ML:2.6 0.005845 0.26 AML other m 2021-09-10T12:55:44.54
IV.FDMO.HHN. ML:2.2 0.001959389 0.2176 AML other m 2021-09-10T12:55:44.88
IV.FDMO.HHE. ML:2.2 0.001975 0.16 AML other m 2021-09-10T12:55:44.82
IV.FEMA.HNE. ML:2.4 0.0043772265 0.2432 AML other m 2021-09-10T12:55:45.27
IV.NRCA.HHE. ML:2.3 0.00185 0.24 AML other m 2021-09-10T12:55:46.52
IV.NRCA.HNE. ML:2.2 0.001715 0.24 AML other m 2021-09-10T12:55:46.52
IV.CSP1.EHN. ML:2.4 0.0025059959999999995 0.3392 AML other m 2021-09-10T12:55:46.50
IV.CSP1.EHE. ML:2.2 0.0016603295 0.3648 AML other m 2021-09-10T12:55:46.59
IV.CESI.HNN. ML:2.3 0.0015427485 0.2624 AML other m 2021-09-10T12:55:48.60
IV.CESI.HHE. ML:2.3 0.001487892 0.2752 AML other m 2021-09-10T12:55:48.62
IV.CESI.HNE. ML:2.2 0.001315 0.28 AML other m 2021-09-10T12:55:48.63
IV.NRCA.HNN. ML:2.2 0.0017900000000000001 0.14 AML other m 2021-09-10T12:55:48.65
IV.NRCA.HHN. ML:2.3 0.001960986 0.1408 AML other m 2021-09-10T12:55:48.72
IV.CESI.HHN. ML:2.3 0.0015265165 0.3392 AML other m 2021-09-10T12:55:48.59
IV.MML1.EHN. ML:1.9 0.0005960000000000001 0.24 AML other m 2021-09-10T12:55:50.34
IV.MML1.HNN. ML:2.0 0.0006095 0.24 AML other m 2021-09-10T12:55:50.34
IV.MML1.EHE. ML:1.8 0.00045730000000000006 0.2432 AML other m 2021-09-10T12:55:50.52
IV.MML1.HNE. ML:1.8 0.000458635 0.2304 AML other m 2021-09-10T12:55:50.52
IV.GUMA.HHE. ML:2.2 0.0013183795000000001 0.4416 AML other m 2021-09-10T12:55:50.99
IV.GUMA.HNN. ML:2.3 0.0015918855 0.3008 AML other m 2021-09-10T12:55:51.00
IV.GUMA.HNE. ML:2.2 0.0013700000000000001 0.42 AML other m 2021-09-10T12:55:51.59
IV.MTRA.EHN. ML:1.8 0.0003165 0.38 AML other m 2021-09-10T12:55:51.41
IV.GUMA.HHN. ML:2.3 0.0014681874999999999 1.6032 AML other m 2021-09-10T12:55:51.81
IV.GAVE.HNN. ML:1.6 0.00017745505 0.6912 AML other m 2021-09-10T12:55:53.18
IV.GAVE.HNE. ML:2.2 0.00057512835 0.1792 AML other m 2021-09-10T12:55:53.93
IV.GAVE.EHE. ML:2.1 0.0005325 0.18 AML other m 2021-09-10T12:55:53.94
IV.MTRA.HNE. ML:1.8 0.00027216125 0.3712 AML other m 2021-09-10T12:55:54.22
IV.MTRA.EHE. ML:1.8 0.00027326700000000005 0.384 AML other m 2021-09-10T12:55:54.23
IV.SNTG.HNN. ML:1.6 0.000156875005 0.224 AML other m 2021-09-10T12:55:54.58
IV.SNTG.HHN. ML:1.6 0.00015350006 0.1984 AML other m 2021-09-10T12:55:54.58
IV.LNSS.HHE. ML:1.7 0.0001704581 0.2432 AML other m 2021-09-10T12:55:54.47
IV.LNSS.HNE. ML:1.7 0.00017285385 0.2496 AML other m 2021-09-10T12:55:54.60
IV.ASSB.HHN. ML:2.0 0.000354 0.32 AML other m 2021-09-10T12:55:54.71
IV.SNTG.HNE. ML:1.7 0.0001842128 0.7584 AML other m 2021-09-10T12:55:54.36
IV.GAVE.EHN. ML:2.0 0.00039512695 0.2368 AML other m 2021-09-10T12:55:55.49
IV.SNTG.HHE. ML:1.5 0.00012777315 0.3008 AML other m 2021-09-10T12:55:55.80
IV.MTRA.HNN. ML:1.9 0.00034863925 1.6416 AML other m 2021-09-10T12:55:56.11
IV.ASSB.HHE. ML:1.8 0.00023207465 0.2368 AML other m 2021-09-10T12:55:56.06
IV.LNSS.HNN. ML:1.9 0.0002497839 0.2688 AML other m 2021-09-10T12:55:56.28
IV.LNSS.HHN. ML:1.9 0.00025550000000000003 0.92 AML other m 2021-09-10T12:55:56.29
IV.EL6.EHE. ML:1.7 0.000185540119 0.3584 AML other m 2021-09-10T12:55:56.66
IV.CING.HHE. ML:1.8 0.00016599999999999997 0.32 AML other m 2021-09-10T12:55:56.52
IV.MNTT.EHE. ML:2.0 0.0003905378 0.2176 AML other m 2021-09-10T12:55:57.11
IV.CING.HHN. ML:1.8 0.0001805 0.34 AML other m 2021-09-10T12:55:57.32
IV.CAMP.HHE. ML:1.6 0.000105456185 0.1792 AML other m 2021-09-10T12:55:57.20
IV.ATCC.EHE. ML:1.9 0.00020050000000000002 0.54 AML other m 2021-09-10T12:55:57.29
IV.MOMA.HHN. ML:1.7 0.000127 0.24 AML other m 2021-09-10T12:55:57.78
IV.CAMP.HHN. ML:1.4 0.0000702 0.2 AML other m 2021-09-10T12:55:57.89
IV.SMA1.EHN. ML:1.8 0.0001955 0.36 AML other m 2021-09-10T12:55:58.26
IV.MNTT.EHN. ML:2.0 0.0003695 0.26 AML other m 2021-09-10T12:55:58.32
IV.MOMA.HNE. ML:1.8 0.00015355259999999998 0.1984 AML other m 2021-09-10T12:55:58.68
IV.SMA1.EHE. ML:1.8 0.00020258075000000001 0.3392 AML other m 2021-09-10T12:55:59.32
IV.MOMA.HHE. ML:1.8 0.0001785 1.76 AML other m 2021-09-10T12:55:59.04
IV.MOMA.HNN. ML:1.7 0.00013815755000000002 1.6672 AML other m 2021-09-10T12:56:00.08
IV.CESX.HHN. ML:1.7 0.00011 0.28 AML other m 2021-09-10T12:56:00.21
IV.CING.HNE. ML:3.3 0.006355184999999999 1.072 AML other m 2021-09-10T12:56:00.43
IV.CESX.HHE. ML:1.6 0.00008525 0.22 AML other m 2021-09-10T12:56:01.47
IV.ARVD.HHE. ML:1.7 0.0001036 1.86 AML other m 2021-09-10T12:56:02.96
IV.CING.HNN. ML:3.2 0.0053964699999999996 0.9664 AML other m 2021-09-10T12:56:02.56
IV.ARVD.HHN. ML:1.5 0.00005765 0.14 AML other m 2021-09-10T12:56:02.57
IV.EL6.EHN. ML:1.9 0.0002543184 0.4416 AML other m 2021-09-10T12:56:02.66
IV.MURB.HHN. ML:2.2 0.00029927899999999995 0.2816 AML other m 2021-09-10T12:56:03.27
IV.MURB.HNN. ML:2.1 0.00026155410000000003 0.2112 AML other m 2021-09-10T12:56:03.28
IV.MURB.HHE. ML:2.1 0.0002695 0.22 AML other m 2021-09-10T12:56:03.70
IV.MURB.HNE. ML:2.2 0.00030135645 0.2496 AML other m 2021-09-10T12:56:03.72
IV.ATCC.EHN. ML:1.7 0.000143284 0.3968 AML other m 2021-09-10T12:56:04.01
IV.MPAG.EHE. ML:1.5 0.000042101135 0.2624 AML other m 2021-09-10T12:56:07.64
IV.MPAG.EHN. ML:1.5 0.000042000000000000004 0.6 AML other m 2021-09-10T12:56:08.23
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