Earthquake with magnitude of ML 1.1 on date 02-12-2023 and time 02:58:44 (UTC) in region 3 km NW Ussita (MC)

A magnitude ML 1.1 earthquake occured in region: 3 km NW Ussita (MC), on

  • 02-12-2023 02:58:44 (UTC)
  • 02-12-2023 03:58:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9660, 13.1270 at 3 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 3 444 444
Visso MC 5 1107 1551
Acquacanina MC 8 121 1672
Castelsantangelo sul Nera MC 8 281 1953
Fiastra MC 8 559 2512
Fiordimonte MC 9 202 2714
Bolognola MC 9 142 2856
Monte Cavallo MC 11 145 3001
Pieve Torina MC 11 1458 4459
Pievebovigliana MC 11 866 5325
Preci PG 12 724 6049
Muccia MC 15 915 6964
Sarnano MC 16 3264 10228
Montefortino FM 18 1178 11406
Montemonaco AP 18 604 12010
Sellano PG 18 1079 13089
Serravalle di Chienti MC 19 1070 14159
Amandola FM 19 3629 17788
Cessapalombo MC 19 512 18300
Norcia PG 19 4957 23257
Camerino MC 20 6974 30231

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
58 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
62 Km E of Perugia (166134 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
98 Km NW of Montesilvano (53738 inhabitants)
98 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
Reviewed
Rev100
ML 1.1 2023-12-02
02:58:44
42.9663 13.1272 3 2023-12-02
03:02:54
Sala Sismica INGV-Roma 123656281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-02 02:58:44 ± 0.08
Latitude 42.9663 ± 0.0018
Longitude 13.1272 ± 0.0025
Depth (km) 3 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123656281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 220
Semi-minor axis of confidence ellipse (meter) 55
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 220.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18616
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 123656281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-02 03:02:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SMA1.EHZ. 2023-12-02T02:58:58.04 3.0 undecidable manual S -0.38 0
IV.SSFR.HHZ. 2023-12-02T02:58:57.83 3.0 negative manual P 2.54 0
IV.MML1.EHZ. 2023-12-02T02:58:51.96 0.3 undecidable manual S 322 20.6682 98 -0.22 71
IV.MMO1.EHZ. 2023-12-02T02:58:51.27 0.3 undecidable manual S 115 17.871 99 0.05 74
IV.CESI.HHZ. 2023-12-02T02:58:51.61 0.3 undecidable manual S 283 18.5703 99 0.14 72
IV.CSP1.EHZ. 2023-12-02T02:58:50.38 0.3 undecidable manual S 24 15.2736 101 0.03 74
IV.NRCA.HHZ. 2023-12-02T02:58:50.03 0.3 undecidable manual S 184 14.7741 101 -0.14 73
IV.MML1.EHZ. 2023-12-02T02:58:49.22 0.1 undecidable manual P 322 20.6682 98 0.09 97
IV.CESI.HHZ. 2023-12-02T02:58:48.66 0.1 undecidable manual P 283 18.5703 99 -0.06 98
IV.CSP1.EHZ. 2023-12-02T02:58:48.03 0.1 undecidable manual P 24 15.2736 101 -0.04 99
IV.NRCA.HHZ. 2023-12-02T02:58:48.07 0.1 undecidable manual P 184 14.7741 101 0.1 97
IV.FDMO.HHZ. 2023-12-02T02:58:48.07 0.3 undecidable manual S 337 8.3805 109 0.02 75
IV.MMO1.EHZ. 2023-12-02T02:58:48.54 0.1 undecidable manual P 115 17.871 99 -0.03 98
IV.FDMO.HHZ. 2023-12-02T02:58:46.77 0.1 undecidable manual P 337 8.3805 109 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.1 0.00010415 0.26 AML other m 2023-12-02T02:58:51.90
IV.CESI.HHN. ML:1.3 0.0001985 1.78 AML other m 2023-12-02T02:58:52.92
IV.NRCA.HHE. ML:1.0 0.000106 1.24 AML other m 2023-12-02T02:58:52.62
IV.NRCA.HHN. ML:1.0 0.00011899999999999999 0.44 AML other m 2023-12-02T02:58:52.70
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