Earthquake with magnitude of ML 0.6 on date 01-04-2023 and time 03:09:22 (Italy) in region 4 km E Sefro (MC)

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

  • 01-04-2023 01:09:22 (UTC)
  • 01-04-2023 03:09:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1350, 12.9940 at 13 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
Sefro MC 4 422 422
Pioraco MC 5 1134 1556
Camerino MC 6 6974 8530
Muccia MC 7 915 9445
Serravalle di Chienti MC 8 1070 10515
Fiuminata MC 8 1402 11917
Castelraimondo MC 10 4587 16504
Pievebovigliana MC 11 866 17370
Pieve Torina MC 11 1458 18828
Gagliole MC 13 620 19448
Fiordimonte MC 13 202 19650
Esanatoglia MC 14 2034 21684
Matelica MC 14 9981 31665
Monte Cavallo MC 16 145 31810
Serrapetrona MC 17 966 32776
Nocera Umbra PG 17 5839 38615
Fiastra MC 17 559 39174
San Severino Marche MC 18 12726 51900
Acquacanina MC 19 121 52021
Caldarola MC 19 1823 53844

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NE of Foligno (57155 inhabitants)
49 Km E of Perugia (166134 inhabitants)
69 Km SW of Ancona (100861 inhabitants)
70 Km NE of Terni (111501 inhabitants)
78 Km NW of Teramo (54892 inhabitants)
79 Km S of Fano (60888 inhabitants)
87 Km S of Pesaro (94582 inhabitants)
93 Km NW of L'Aquila (69753 inhabitants)
97 Km E of Arezzo (99543 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 0.6 2023-04-01
01:09:22
43.1352 12.9937 13 2024-03-01
17:18:02
Bollettino Sismico Italiano INGV 116120341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-01 01:09:22 ± 0.05
Latitude 43.1352 ± 0.0018
Longitude 12.9937 ± 0.0025
Depth (km) 13 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116120341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 190
Semi-minor axis of confidence ellipse (meter) 22
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 190.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.31386
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 116120341
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-06 15:53:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2023-04-01T01:09:34.07 0.6 undecidable manual S 164 34.8429 95 0.15 48
IV.ASSB.HHZ. 2023-04-01T01:09:32.31 0.3 undecidable manual S 249 29.0487 97 -0.06 74
IV.FOSV.HNZ. 2023-04-01T01:09:31.74 0.6 undecidable manual S 313 25.8519 99 0.22 48
IV.EL6.EHZ. 2023-04-01T01:09:30.90 0.6 undecidable manual S 22 23.2545 101 0.06 50
IV.CSP1.EHZ. 2023-04-01T01:09:29.50 0.1 undecidable manual S 106 17.7711 109 0.07 100
IV.CESI.HHZ. 2023-04-01T01:09:29.07 0.1 undecidable manual S 207 16.1727 112 0.04 100
IV.SNTG.HHZ. 2023-04-01T01:09:28.39 0.3 undecidable manual S 342 13.9749 118 -0.1 75
IV.NRCA.HHZ. 2023-04-01T01:09:28.76 0.6 undecidable manual P 164 34.8429 95 -0.18 47
IV.FDMO.HHZ. 2023-04-01T01:09:28.10 0.6 undecidable manual S 145 13.2756 120 -0.24 49
IV.ASSB.HHZ. 2023-04-01T01:09:27.97 0.6 undecidable manual P 249 29.0487 97 -0.07 49
IV.FOSV.HNZ. 2023-04-01T01:09:27.45 1.0 undecidable manual P 313 25.8519 99 -0.1 24
IV.EL6.EHZ. 2023-04-01T01:09:27.14 0.6 undecidable manual P 22 23.2545 101 -0.02 50
IV.MML1.EHZ. 2023-04-01T01:09:26.64 0.3 undecidable manual S 217 2.997 164 0.02 77
IV.CSP1.EHZ. 2023-04-01T01:09:26.33 0.6 undecidable manual P 106 17.7711 109 -0.01 50
IV.CESI.HHZ. 2023-04-01T01:09:26.12 0.3 undecidable manual P 207 16.1727 112 0.01 76
IV.FDMO.HHZ. 2023-04-01T01:09:25.73 0.3 undecidable manual P 145 13.2756 120 0.01 76
IV.SNTG.HHZ. 2023-04-01T01:09:25.77 0.3 undecidable manual P 342 13.9749 118 -0.04 76
IV.MML1.EHZ. 2023-04-01T01:09:24.87 0.6 undecidable manual P 217 2.997 164 0.15 50
IV.MURB.HHZ. 2023-04-01T01:09:23.33 3.0 undecidable manual P 0
IV.GAG1.HNZ. 2023-04-01T01:09:13.75 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHN. ML:0.4 0.000031213515 0.08 AML other m 2023-04-01T01:09:26.79
IV.MML1.EHE. ML:0.5 0.000041803195 0.2 AML other m 2023-04-01T01:09:27.06
IV.FDMO.HHN. ML:0.6 0.00004031117 0.2 AML other m 2023-04-01T01:09:28.32
IV.FDMO.HHE. ML:0.6 0.00003378973 0.14 AML other m 2023-04-01T01:09:28.27
IV.SNTG.HHE. ML:0.6 0.000035908485 0.14 AML other m 2023-04-01T01:09:28.46
IV.SNTG.HHN. ML:0.6 0.00003927995 2.88 AML other m 2023-04-01T01:09:28.48
IV.CESI.HHE. ML:0.5 0.000026041717500000003 46.46 AML other m 2023-04-01T01:09:25.94
IV.CESI.HHN. ML:0.6 0.00003301684 0.14 AML other m 2023-04-01T01:09:29.19
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