Earthquake with magnitude of ML 0.4 on date 30-03-2023 and time 22:06:57 (UTC) in region 4 km NW Ussita (MC)

A magnitude ML 0.4 earthquake occured in region: 4 km NW Ussita (MC), on

  • 30-03-2023 22:06:57 (UTC)
  • 31-03-2023 00:06:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9770, 13.1160 at 6 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
Visso MC 6 1107 1551
Fiordimonte MC 7 202 1753
Fiastra MC 7 559 2312
Acquacanina MC 8 121 2433
Pieve Torina MC 9 1458 3891
Bolognola MC 9 142 4033
Monte Cavallo MC 9 145 4178
Castelsantangelo sul Nera MC 10 281 4459
Pievebovigliana MC 10 866 5325
Preci PG 13 724 6049
Muccia MC 13 915 6964
Sarnano MC 17 3264 10228
Serravalle di Chienti MC 17 1070 11298
Sellano PG 18 1079 12377
Camerino MC 18 6974 19351
Cessapalombo MC 19 512 19863
Montefortino FM 19 1178 21041
Montemonaco AP 19 604 21645
Amandola FM 20 3629 25274

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
60 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
61 Km E of Perugia (166134 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
97 Km S of Fano (60888 inhabitants)
99 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
Reviewed
Rev100
ML 0.4 2023-03-30
22:06:57
42.9772 13.1158 6 2023-03-30
22:18:43
Sala Sismica INGV-Roma 115897391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-30 22:06:57 ± 0.21
Latitude 42.9772 ± 0.0045
Longitude 13.1158 ± 0.0049
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 115897391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 530
Semi-minor axis of confidence ellipse (meter) 173
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 214
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.06295
Epicentral distance of station farthest from the epicenter (degree) 0.25181
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 115897391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-30 22:18:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2023-03-30T22:07:08.53 0.3 undecidable manual S 87 27.9498 102 0.87 56
IV.GUMA.HHZ. 2023-03-30T22:07:05.36 0.3 undecidable manual S 62 20.1687 106 0.31 69
IV.CESI.HHZ. 2023-03-30T22:07:04.52 0.1 undecidable manual S 280 17.3715 108 0.39 91
IV.MMO1.EHZ. 2023-03-30T22:07:04.74 0.1 undecidable manual S 117 19.1697 107 0.02 98
7F.SIB2.EHZ. 2023-03-30T22:07:04.35 0.1 undecidable manual S 122 17.9709 108 0.02 98
IV.MML1.EHZ. 2023-03-30T22:07:04.74 0.3 undecidable manual S 322 19.1697 107 0.04 73
7F.SIB3.EHZ. 2023-03-30T22:07:03.62 0.3 undecidable manual S 132 16.872 109 -0.34 69
IV.MF5.EHZ. 2023-03-30T22:07:03.68 0.3 undecidable manual P 87 27.9498 102 0.2 70
IV.CSP1.EHZ. 2023-03-30T22:07:03.27 0.1 undecidable manual S 30 14.6742 112 0.05 98
IV.NRCA.HHZ. 2023-03-30T22:07:03.78 0.1 undecidable manual S 180 15.9729 110 0.13 96
IV.GUMA.HHZ. 2023-03-30T22:07:02.21 0.3 undecidable manual P 62 20.1687 106 0.24 70
7F.SIB2.EHZ. 2023-03-30T22:07:01.64 0.1 undecidable manual P 122 17.9709 108 0.09 97
IV.NRCA.HHZ. 2023-03-30T22:07:01.19 0.1 undecidable manual P 180 15.9729 110 0.03 98
IV.MML1.EHZ. 2023-03-30T22:07:01.75 0.3 undecidable manual P 322 19.1697 107 -0.02 73
IT.MTCL.HGZ. 2023-03-30T22:07:01.98 0.3 undecidable manual S 281 9.5793 121 0.31 70
IV.CESI.HHZ. 2023-03-30T22:07:01.52 0.1 undecidable manual P 280 17.3715 108 0.08 97
IV.MMO1.EHZ. 2023-03-30T22:07:01.60 0.1 undecidable manual P 117 19.1697 107 -0.18 95
IV.CSP1.EHZ. 2023-03-30T22:07:00.03 0.1 undecidable manual P 30 14.6742 112 -0.89 76
IV.FDMO.HHZ. 2023-03-30T22:07:00.74 0.1 undecidable manual S 341 6.993 130 -0.18 97
7F.SIB3.EHZ. 2023-03-30T22:07:00.78 0.3 undecidable manual P 132 16.872 109 -0.56 65
IV.FDMO.HHZ. 2023-03-30T22:06:59.59 0.1 undecidable manual P 341 6.993 130 0.01 100
IT.MTCL.HGZ. 2023-03-30T22:06:59.42 0.3 undecidable manual P 281 9.5793 121 -0.6 65
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.0 0.000034025465000000006 0.128 AML other m 2023-03-30T22:07:01.35
IV.FDMO.HHN. ML:0.0 0.000067172795 0.1536 AML other m 2023-03-30T22:07:01.08
IV.CSP1.EHN. ML:0.6 0.000049388127 0.5376 AML other m 2023-03-30T22:07:03.85
IV.NRCA.HHE. ML:0.3 0.00001976507 0.5376 AML other m 2023-03-30T22:07:04.63
IV.NRCA.HHN. ML:0.2 0.00001699378 0.3584 AML other m 2023-03-30T22:07:04.08
IV.CESI.HHE. ML:0.5 0.000027692825000000002 0.1664 AML other m 2023-03-30T22:07:04.93
IV.CESI.HHN. ML:0.5 0.000031584330000000004 0.1792 AML other m 2023-03-30T22:07:04.72
IV.MMO1.EHN. ML:0.6 0.00002863495 2.112 AML other m 2023-03-30T22:07:04.86
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