Earthquake with magnitude of ML 0.5 on date 21-02-2023 and time 07:25:10 (Italy) in region 1 km SW Serravalle di Chienti (MC)

A magnitude ML 0.5 earthquake occured in region: 1 km SW Serravalle di Chienti (MC), on

  • 21-02-2023 06:25:10 (UTC)
  • 21-02-2023 07:25:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0680, 12.9450 at 10 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
Serravalle di Chienti MC 1 1070 1070
Muccia MC 8 915 1985
Sefro MC 9 422 2407
Pieve Torina MC 9 1458 3865
Monte Cavallo MC 9 145 4010
Pievebovigliana MC 11 866 4876
Fiordimonte MC 12 202 5078
Camerino MC 13 6974 12052
Pioraco MC 13 1134 13186
Nocera Umbra PG 13 5839 19025
Fiuminata MC 14 1402 20427
Valtopina PG 15 1398 21825
Fiastra MC 18 559 22384
Castelraimondo MC 18 4587 26971
Visso MC 19 1107 28078
Acquacanina MC 19 121 28199
Sellano PG 20 1079 29278

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NE of Foligno (57155 inhabitants)
45 Km E of Perugia (166134 inhabitants)
61 Km NE of Terni (111501 inhabitants)
77 Km NW of Teramo (54892 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
87 Km S of Fano (60888 inhabitants)
88 Km NW of L'Aquila (69753 inhabitants)
94 Km S of Pesaro (94582 inhabitants)
97 Km E of Arezzo (99543 inhabitants)
100 Km NE of Viterbo (67173 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 0.5 2023-02-21
06:25:10
43.0682 12.9447 10 2024-03-01
17:17:59
Bollettino Sismico Italiano INGV 115470571
Reviewed
Rev100
ML 0.6 2023-02-21
06:25:09
43.0507 12.921 16 2023-02-21
06:31:03
Sala Sismica INGV-Roma 114652591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-21 06:25:10 ± 0.09
Latitude 43.0682 ± 0.0045
Longitude 12.9447 ± 0.0062
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115470571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 536
Semi-minor axis of confidence ellipse (meter) 500
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 284
Circular confidence region, given by single value of horizontal uncertainty (meter) 540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38041
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 115470571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-03-17 13:33:22

ML:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 114652591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-21 06:31:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
7F.SIB1.EHE. 2023-02-21T06:25:21.92 0.3 undecidable manual S 126 32.6451 50 -0.24 73
IV.MOMA.HNZ. 2023-02-21T06:25:18.99 0.1 undecidable manual P 226 42.2244 50 0.22 96
IV.MURB.HHE. 2023-02-21T06:25:18.65 0.6 undecidable manual P 303 40.2264 50 0.18 48
IV.CSP1.EHE. 2023-02-21T06:25:18.83 0.6 undecidable manual S 83 21.2676 114 0.07 51
IV.SNTG.HHE. 2023-02-21T06:25:18.32 0.3 undecidable manual S 359 20.7681 115 -0.28 73
7F.SIB1.EHE. 2023-02-21T06:25:17.57 0.3 undecidable manual P 126 32.6451 50 0.27 72
IV.FDMO.HHZ. 2023-02-21T06:25:16.29 0.3 undecidable manual S 107 12.0768 129 0.26 75
IV.SNTG.HHE. 2023-02-21T06:25:15.11 0.6 undecidable manual P 359 20.7681 115 -0.14 50
IV.CSP1.EHE. 2023-02-21T06:25:15.11 0.1 undecidable manual P 83 21.2676 114 -0.23 99
IV.MML1.EHZ. 2023-02-21T06:25:14.86 0.3 undecidable manual S 24 5.4945 150 0.34 74
IV.CESI.HHZ. 2023-02-21T06:25:14.89 0.3 undecidable manual S 205 7.6812 141 -0.06 79
IV.FDMO.HHZ. 2023-02-21T06:25:13.61 0.3 undecidable manual P 107 12.0768 129 -0.15 77
IV.MML1.EHZ. 2023-02-21T06:25:13.09 0.3 negative manual P 24 5.4945 150 0.2 77
IV.CESI.HHZ. 2023-02-21T06:25:12.85 0.1 undecidable manual P 205 7.6812 141 -0.29 100
IV.FAGN.HHZ. 2023-02-21T06:25:12.99 3.0 undecidable manual P 0 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.6 0.00005885 0.42 AML other m 2023-02-21T06:25:15.36
IV.CESI.HHN. ML:0.5 0.00004465 0.46 AML other m 2023-02-21T06:25:15.34
IV.FDMO.HHE. ML:0.4 0.0000288 0.12 AML other m 2023-02-21T06:25:16.53
IV.FDMO.HHN. ML:0.4 0.00002985 0.12 AML other m 2023-02-21T06:25:16.69
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