Earthquake with magnitude of ML 0.4 on date 21-11-2023 and time 00:55:21 (UTC) in region 4 km W Serravalle di Chienti (MC)

A magnitude ML 0.4 earthquake occured in region: 4 km W Serravalle di Chienti (MC), on

  • 21-11-2023 00:55:21 (UTC)
  • 21-11-2023 01:55:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0840, 12.9030 at 17 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
Serravalle di Chienti MC 4 1070 1070
Sefro MC 8 422 1492
Nocera Umbra PG 10 5839 7331
Muccia MC 12 915 8246
Fiuminata MC 12 1402 9648
Valtopina PG 12 1398 11046
Pioraco MC 13 1134 12180
Monte Cavallo MC 13 145 12325
Pieve Torina MC 13 1458 13783
Camerino MC 15 6974 20757
Pievebovigliana MC 15 866 21623
Fiordimonte MC 16 202 21825
Castelraimondo MC 19 4587 26412
Gualdo Tadino PG 19 15208 41620
Esanatoglia MC 19 2034 43654

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NE of Foligno (57155 inhabitants)
42 Km E of Perugia (166134 inhabitants)
62 Km NE of Terni (111501 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
81 Km NW of Teramo (54892 inhabitants)
85 Km S of Fano (60888 inhabitants)
91 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Pesaro (94582 inhabitants)
93 Km E of Arezzo (99543 inhabitants)
99 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
Reviewed
Rev100
ML 0.4 2023-11-21
00:55:21
43.084 12.9027 17 2023-11-21
01:55:51
Sala Sismica INGV-Roma 123295841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-11-21 00:55:21 ± 0.13
Latitude 43.0840 ± 0.0036
Longitude 12.9027 ± 0.0049
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123295841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 457
Semi-minor axis of confidence ellipse (meter) 108
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 223
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.05846
Epicentral distance of station farthest from the epicenter (degree) 0.29408
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 123295841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-11-21 01:55:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2023-11-21T00:55:33.30 0.3 undecidable manual S 148 32.6451 105 -0.01 72
IV.CSP1.EHZ. 2023-11-21T00:55:31.41 0.3 undecidable manual S 88 24.4533 113 0.16 70
IV.ASSB.HHZ. 2023-11-21T00:55:30.21 0.3 undecidable manual S 257 20.2686 119 -0.03 73
IV.FDMO.HHZ. 2023-11-21T00:55:29.22 0.3 undecidable manual S 109 15.873 128 -0.03 74
IV.SNTG.HHZ. 2023-11-21T00:55:29.76 0.3 undecidable manual S 9 19.2696 121 -0.23 71
IT.MTCL.HGE. 2023-11-21T00:55:28.43 0.3 undecidable manual S 142 12.6762 135 -0.18 72
IV.NRCA.HHZ. 2023-11-21T00:55:28.32 0.3 undecidable manual P 148 32.6451 105 -0.18 70
IV.MML1.EHZ. 2023-11-21T00:55:27.76 0.3 undecidable manual S 60 6.4935 155 0.1 74
IV.CESI.HNZ. 2023-11-21T00:55:27.95 0.3 undecidable manual S 179 8.7801 147 0 75
IV.SNTG.HHZ. 2023-11-21T00:55:26.72 0.1 undecidable manual P 9 19.2696 121 0.14 96
IV.ASSB.HHZ. 2023-11-21T00:55:26.75 0.3 undecidable manual P 257 20.2686 119 0.02 74
IV.CSP1.EHZ. 2023-11-21T00:55:26.77 0.6 undecidable manual P 88 24.4533 113 -0.54 44
IV.FDMO.HHZ. 2023-11-21T00:55:26.28 0.1 undecidable manual P 109 15.873 128 0.13 96
IV.CESI.HNZ. 2023-11-21T00:55:25.49 0.1 undecidable manual P 179 8.7801 147 0.08 99
IT.MTCL.HGE. 2023-11-21T00:55:25.86 0.1 undecidable manual P 142 12.6762 135 0.07 98
IV.MML1.EHZ. 2023-11-21T00:55:25.27 0.1 undecidable manual P 60 6.4935 155 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHN. ML:0.6 0.000034200000000000005 0.16 AML other m 2023-11-21T00:55:27.89
IV.MML1.EHE. ML:0.6 0.000039699999999999996 0.18 AML other m 2023-11-21T00:55:27.90
IV.SNTG.HHE. ML:0.4 0.000013564309 0.1 AML other m 2023-11-21T00:55:30.20
IV.SNTG.HHN. ML:0.4 0.000015342851549999998 0.1 AML other m 2023-11-21T00:55:30.11
IV.ASSB.HHE. ML:0.4 0.000015041180000000001 0.16 AML other m 2023-11-21T00:55:30.84
IV.ASSB.HHN. ML:0.4 0.000014511306000000001 0.14 AML other m 2023-11-21T00:55:30.94
IV.NRCA.HHE. ML:0.4 0.000009446693999999999 0.16 AML other m 2023-11-21T00:55:33.53
IV.NRCA.HHN. ML:0.4 0.0000101002925 0.14 AML other m 2023-11-21T00:55:33.87
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download