Earthquake with magnitude of ML 1.1 on date 11-04-2023 and time 22:29:17 (Italy) in region 1 km S Ussita (MC)

A magnitude ML 1.1 earthquake occured in region: 1 km S Ussita (MC), on

  • 11-04-2023 20:29:17 (UTC)
  • 11-04-2023 22:29:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9340, 13.1400 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.

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 4 281 1832
Bolognola MC 10 142 1974
Preci PG 10 724 2698
Acquacanina MC 11 121 2819
Fiastra MC 12 559 3378
Fiordimonte MC 12 202 3580
Monte Cavallo MC 13 145 3725
Pieve Torina MC 14 1458 5183
Pievebovigliana MC 15 866 6049
Montemonaco AP 16 604 6653
Norcia PG 16 4957 11610
Montefortino FM 17 1178 12788
Sarnano MC 17 3264 16052
Sellano PG 18 1079 17131
Muccia MC 18 915 18046
Amandola FM 18 3629 21675
Montegallo AP 19 523 22198

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
55 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
64 Km E of Perugia (166134 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
95 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
Bulletin
Rev1000
ML 1.1 2023-04-11
20:29:17
42.9338 13.1398 9 2024-03-01
17:18:20
Bollettino Sismico Italiano INGV 124790361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-11 20:29:17 ± 0.06
Latitude 42.9338 ± 0.0036
Longitude 13.1398 ± 0.0037
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 124790361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 368
Semi-minor axis of confidence ellipse (meter) 291
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 24
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
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) 0.10162
Epicentral distance of station farthest from the epicenter (degree) 0.46045
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 124790361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-22 14:09:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2023-04-11T20:29:34.54 0.6 undecidable manual S 132 51.1155 50 0.3 44
IV.LNSS.HHZ. 2023-04-11T20:29:31.02 1.0 undecidable manual S 192 37.629 50 0.4 22
IV.SMA1.EHZ. 2023-04-11T20:29:30.54 0.6 undecidable manual S 155 37.2294 50 0.02 48
IV.MF5.EHZ. 2023-04-11T20:29:28.01 0.6 undecidable manual S 77 26.6511 108 0.64 42
IV.MML1.EHZ. 2023-04-11T20:29:26.67 0.6 undecidable manual S 326 24.1536 110 0.12 48
IV.GUMA.HHZ. 2023-04-11T20:29:26.13 0.6 undecidable manual S 48 21.3675 112 0.5 44
IV.TERO.HHZ. 2023-04-11T20:29:26.91 0.3 undecidable manual P 132 51.1155 50 -0.31 66
IV.CESI.HHZ. 2023-04-11T20:29:25.63 0.6 undecidable manual S 293 20.6682 113 0.21 47
IV.LNSS.HHZ. 2023-04-11T20:29:25.02 0.3 undecidable manual P 192 37.629 50 -0.1 70
IV.SMA1.EHZ. 2023-04-11T20:29:24.80 0.1 undecidable manual P 155 37.2294 50 -0.27 91
IV.MF5.EHZ. 2023-04-11T20:29:23.57 0.1 undecidable manual P 77 26.6511 108 0.32 91
IV.MMO1.EHZ. 2023-04-11T20:29:23.68 0.6 undecidable manual S 104 15.6732 119 -0.18 48
7F.SIB2.EHE. 2023-04-11T20:29:23.06 0.6 undecidable manual S 110 14.1747 122 -0.34 47
IV.NRCA.HHZ. 2023-04-11T20:29:23.02 0.3 undecidable manual S 191 11.2776 128 0.42 69
IT.MTCL.HGZ. 2023-04-11T20:29:22.91 0.6 undecidable manual S 300 13.1757 124 -0.23 48
7F.SIB1.EHE. 2023-04-11T20:29:22.40 0.6 undecidable manual S 112 11.3775 128 -0.23 48
IV.CESI.HHZ. 2023-04-11T20:29:22.21 0.1 undecidable manual P 293 20.6682 113 0.09 97
IV.FDMO.HHZ. 2023-04-11T20:29:22.40 0.6 undecidable manual S 339 12.1767 126 -0.44 46
IV.MML1.EHZ. 2023-04-11T20:29:22.79 0.3 undecidable manual P 326 24.1536 110 0.01 73
IV.GUMA.HHZ. 2023-04-11T20:29:22.32 0.3 undecidable manual P 48 21.3675 112 0.07 73
7F.SIB3.EHN. 2023-04-11T20:29:22.58 0.6 undecidable manual S 122 12.3765 125 -0.33 47
IV.MMO1.EHZ. 2023-04-11T20:29:21.19 0.1 undecidable manual P 104 15.6732 119 -0.04 99
7F.SIB2.EHE. 2023-04-11T20:29:20.83 0.1 undecidable manual P 110 14.1747 122 -0.13 97
IV.FDMO.HHZ. 2023-04-11T20:29:20.40 0.3 undecidable manual P 339 12.1767 126 -0.24 72
7F.SIB3.EHN. 2023-04-11T20:29:20.56 0.1 undecidable manual P 122 12.3765 125 -0.11 98
IV.NRCA.HHZ. 2023-04-11T20:29:20.73 0.1 undecidable manual P 191 11.2776 128 0.23 96
IT.MTCL.HGZ. 2023-04-11T20:29:20.72 0.3 undecidable manual P 300 13.1757 124 -0.09 74
7F.SIB1.EHE. 2023-04-11T20:29:20.53 0.1 undecidable manual P 112 11.3775 128 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:1.0 0.0000286 0.16 AML other m 2023-04-11T20:29:15.47
IV.FDMO.HHN. ML:1.2 0.00020649999999999998 0.18 AML other m 2023-04-11T20:29:23.31
IV.NRCA.HHE. ML:1.5 0.00035950000000000006 1.1 AML other m 2023-04-11T20:29:23.02
IV.MMO1.EHN. ML:1.2 0.0001675 1.4 AML other m 2023-04-11T20:29:24.10
IV.NRCA.HHN. ML:1.4 0.0003115 1.22 AML other m 2023-04-11T20:29:24.94
IV.MMO1.EHE. ML:1.1 0.00011344999999999999 0.54 AML other m 2023-04-11T20:29:24.49
IV.CSP1.EHN. ML:1.4 0.00023500000000000002 0.34 AML other m 2023-04-11T20:29:25.60
IV.CESI.HHN. ML:1.1 0.0001002 1.16 AML other m 2023-04-11T20:29:25.37
IV.CESI.HHE. ML:1.0 0.00007230000000000001 0.52 AML other m 2023-04-11T20:29:26.55
IV.MML1.EHE. ML:0.8 0.0000386 0.44 AML other m 2023-04-11T20:29:29.47
IV.FDMO.HHE. ML:1.2 0.00017199999999999998 0.54 AML other m 2023-04-11T20:29:30.60
IV.CSP1.EHE. ML:1.3 0.00015215 0.5 AML other m 2023-04-11T20:29:32.15
IV.ASSB.HHE. ML:1.0 0.0000296 1.24 AML other m 2023-04-11T20:29:34.73
IV.GUMA.HHN. ML:1.2 0.000125 0.34 AML other m 2023-04-11T20:29:35.66
IV.MML1.EHN. ML:0.9 0.00004795 0.18 AML other m 2023-04-11T20:29:35.41
IV.SMA1.EHE. ML:1.0 0.00003315 1.04 AML other m 2023-04-11T20:29:36.02
IV.GUMA.HHE. ML:1.2 0.000116 0.68 AML other m 2023-04-11T20:29:37.89
IV.SMA1.EHN. ML:0.8 0.000027199999999999997 1.06 AML other m 2023-04-11T20:29:38.67
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