Earthquake with magnitude of ML 0.4 on date 01-10-2023 and time 20:27:05 (UTC) in region 2 km NW San Severino Marche (MC)

A magnitude ML 0.4 earthquake occured in region: 2 km NW San Severino Marche (MC), on

  • 01-10-2023 20:27:05 (UTC)
  • 01-10-2023 22:27:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2420, 13.1620 at 10 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
San Severino Marche MC 2 12726 12726
Gagliole MC 8 620 13346
Serrapetrona MC 8 966 14312
Castelraimondo MC 9 4587 18899
Belforte del Chienti MC 11 1886 20785
Tolentino MC 11 20069 40854
Matelica MC 12 9981 50835
Caldarola MC 13 1823 52658
Camerino MC 14 6974 59632
Treia MC 15 9403 69035
Camporotondo di Fiastrone MC 15 563 69598
Pollenza MC 15 6618 76216
Cingoli MC 16 10352 86568
Pioraco MC 16 1134 87702
Poggio San Vicino MC 16 246 87948
Cessapalombo MC 17 512 88460
Cerreto d'Esi AN 17 3817 92277
Apiro MC 17 2280 94557
Esanatoglia MC 17 2034 96591
Colmurano MC 18 1263 97854
Urbisaglia MC 18 2628 100482
San Ginesio MC 19 3498 103980
Fiuminata MC 20 1402 105382
Muccia MC 20 915 106297
Ripe San Ginesio MC 20 852 107149

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km NE of Foligno (57155 inhabitants)
51 Km SW of Ancona (100861 inhabitants)
64 Km E of Perugia (166134 inhabitants)
68 Km S of Fano (60888 inhabitants)
77 Km S of Pesaro (94582 inhabitants)
78 Km NW of Teramo (54892 inhabitants)
86 Km NE of Terni (111501 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 2023-10-01
20:27:05
43.2417 13.162 10 2023-10-01
20:30:59
Sala Sismica INGV-Roma 121655001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-01 20:27:05 ± 0.1
Latitude 43.2417 ± 0.0036
Longitude 13.1620 ± 0.0062
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121655001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 470
Semi-minor axis of confidence ellipse (meter) 238
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 82
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.40919
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 121655001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-01 20:30:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2023-10-01T20:27:20.92 0.3 undecidable manual S 185 45.4212 50 0.19 91
IV.GUMA.HHZ. 2023-10-01T20:27:15.29 0.6 undecidable manual S 145 24.2535 111 0.42 60
IV.NRCA.HHZ. 2023-10-01T20:27:14.06 0.6 undecidable manual P 185 45.4212 50 -0.36 59
IV.SNTG.HHZ. 2023-10-01T20:27:13.01 0.6 undecidable manual S 275 17.9709 118 0.14 64
IV.MML1.EHZ. 2023-10-01T20:27:13.81 0.3 undecidable manual S 227 20.9679 115 0.02 99
IV.CING.HHZ. 2023-10-01T20:27:12.00 0.3 undecidable manual S 10 15.0738 122 -0.01 100
IV.CSP1.EHZ. 2023-10-01T20:27:12.39 0.6 undecidable manual S 168 16.9719 119 -0.17 64
IV.MF5.EHZ. 2023-10-01T20:27:12.15 3.0 undecidable manual P -0.55 0
IV.GUMA.HHZ. 2023-10-01T20:27:11.08 0.6 positive manual P 145 24.2535 111 0.04 65
IV.SNTG.HHZ. 2023-10-01T20:27:10.01 0.6 negative manual P 275 17.9709 118 0.13 65
IV.MML1.EHZ. 2023-10-01T20:27:10.44 0.6 negative manual P 227 20.9679 115 0.02 66
IV.FDMO.HHZ. 2023-10-01T20:27:10.65 0.3 negative manual P 195 23.5542 112 -0.25 94
IV.CING.HHZ. 2023-10-01T20:27:09.35 1.0 undecidable manual P 10 15.0738 122 -0.03 33
IV.CSP1.EHZ. 2023-10-01T20:27:09.60 0.3 negative manual P 168 16.9719 119 -0.11 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CING.HHN. ML:0.5 0.000032099999999999994 0.42 AML other m 2023-10-01T20:27:12.45
IV.CING.HHE. ML:0.7 0.0000494 0.08 AML other m 2023-10-01T20:27:12.23
IV.SNTG.HHN. ML:0.3 0.00001313 0.66 AML other m 2023-10-01T20:27:13.55
IV.SNTG.HHE. ML:0.1 0.000012159999999999999 0.52 AML other m 2023-10-01T20:27:13.12
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