Earthquake with magnitude of ML 0.6 on date 27-07-2023 and time 09:18:42 (UTC) in region 4 km N Ussita (MC)

A magnitude ML 0.6 earthquake occured in region: 4 km N Ussita (MC), on

  • 27-07-2023 09:18:42 (UTC)
  • 27-07-2023 11:18:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9780, 13.1470 at 8 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 4 444 444
Acquacanina MC 6 121 565
Fiastra MC 7 559 1124
Bolognola MC 7 142 1266
Visso MC 7 1107 2373
Fiordimonte MC 8 202 2575
Castelsantangelo sul Nera MC 9 281 2856
Pievebovigliana MC 11 866 3722
Pieve Torina MC 11 1458 5180
Monte Cavallo MC 12 145 5325
Preci PG 14 724 6049
Sarnano MC 14 3264 9313
Muccia MC 14 915 10228
Montefortino FM 16 1178 11406
Montemonaco AP 17 604 12010
Amandola FM 17 3629 15639
Cessapalombo MC 17 512 16151
Gualdo MC 19 815 16966
Camerino MC 19 6974 23940
Serravalle di Chienti MC 19 1070 25010
Caldarola MC 19 1823 26833
Camporotondo di Fiastrone MC 20 563 27396

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
58 Km NW of Teramo (54892 inhabitants)
62 Km NE of Terni (111501 inhabitants)
63 Km E of Perugia (166134 inhabitants)
73 Km N of L'Aquila (69753 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
97 Km NW of Montesilvano (53738 inhabitants)
97 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 0.6 2023-07-27
09:18:42
42.9775 13.1472 8 2023-07-27
09:35:11
Sala Sismica INGV-Roma 119620351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-27 09:18:42 ± 0.26
Latitude 42.9775 ± 0.0045
Longitude 13.1472 ± 0.0098
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119620351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 814
Semi-minor axis of confidence ellipse (meter) 271
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 87
Circular confidence region, given by single value of horizontal uncertainty (meter) 810.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 9
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) 0.18706
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 119620351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-27 09:35:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MML1.EHZ. 2023-07-27T09:18:49.93 0.3 undecidable manual S 317 20.7681 111 0.07 74
IV.NRCA.HHZ. 2023-07-27T09:18:48.37 0.3 undecidable manual S 190 16.1727 116 -0.04 75
IV.FRON.EHZ. 2023-07-27T09:18:47.79 3.0 undecidable manual P -0.01 0
IV.CSP1.EHZ. 2023-07-27T09:18:47.29 0.3 undecidable manual S 20 13.4754 121 -0.3 72
IV.FDMO.HHZ. 2023-07-27T09:18:46.28 0.3 undecidable manual S 323 8.1807 134 0.17 74
IV.GUMA.HHZ. 2023-07-27T09:18:46.56 0.3 undecidable manual P 58 17.9709 114 0.48 69
IV.MML1.EHZ. 2023-07-27T09:18:46.48 0.3 undecidable manual P 317 20.7681 111 -0.12 74
IV.NRCA.HHZ. 2023-07-27T09:18:45.69 0.1 undecidable manual P 190 16.1727 116 -0.07 100
IV.CSP1.EHZ. 2023-07-27T09:18:45.09 0.3 undecidable manual P 20 13.4754 121 -0.2 73
IV.FDMO.HHZ. 2023-07-27T09:18:44.48 0.3 undecidable manual P 323 8.1807 134 0.05 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.3 0.0000354 0.6 AML other m 2023-07-27T09:18:46.43
IV.FDMO.HHN. ML:0.4 0.000042000000000000004 0.3 AML other m 2023-07-27T09:18:46.51
IV.NRCA.HHN. ML:0.7 0.0000459 0.88 AML other m 2023-07-27T09:18:48.69
IV.NRCA.HHE. ML:0.7 0.00004685 0.52 AML other m 2023-07-27T09:18:49.56
IV.CSP1.EHE. ML:0.6 0.000050928785000000005 0.0768 AML other m 2023-07-27T09:18:47.38
IV.CSP1.EHN. ML:0.7 0.000056057635000000006 0.1792 AML other m 2023-07-27T09:18:47.29
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