Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 01-04-2023 and time 00:23:02 (UTC) in region 4 km NW Esanatoglia (MC)

A magnitude ML 1.0 earthquake occured in region: 4 km NW Esanatoglia (MC), on

  • 01-04-2023 00:23:02 (UTC)
  • 01-04-2023 02:23:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2790, 12.9150 at 11 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Esanatoglia MC 4 2034 2034
Fabriano AN 7 31480 33514
Cerreto d'Esi AN 8 3817 37331
Matelica MC 8 9981 47312
Fiuminata MC 10 1402 48714
Gualdo Tadino PG 12 15208 63922
Pioraco MC 12 1134 65056
Fossato di Vico PG 13 2840 67896
Gagliole MC 13 620 68516
Castelraimondo MC 14 4587 73103
Sefro MC 15 422 73525
Sigillo PG 15 2404 75929
Genga AN 17 1797 77726
Poggio San Vicino MC 17 246 77972
Sassoferrato AN 18 7285 85257
Costacciaro PG 19 1216 86473

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km NE of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
62 Km SW of Ancona (100861 inhabitants)
63 Km S of Fano (60888 inhabitants)
70 Km S of Pesaro (94582 inhabitants)
83 Km N of Terni (111501 inhabitants)
86 Km E of Arezzo (99543 inhabitants)
91 Km SE of Rimini (147750 inhabitants)
94 Km NW of Teramo (54892 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 1.0 2023-04-01
00:23:02		 43.279 12.9148 11 2024-03-01
17:18:02		 Bollettino Sismico Italiano INGV 116118201
Reviewed
Rev100 		ML 1.0 2023-04-01
00:23:02		 43.2758 12.9167 11 2023-04-01
00:57:56		 Sala Sismica INGV-Roma 115930831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-01 00:23:02 ± 0.04
Latitude 43.2790 ± 0.0018
Longitude 12.9148 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116118201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 377
Semi-minor axis of confidence ellipse (meter) 132
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 248
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41099
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 116118201
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-06 14:28:57

ML:1.0

Field Value
Value 1.0
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 115930831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-01 00:57:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2023-04-01T00:23:17.99 0.3 undecidable manual S 324 45.621 50 0.5 64
IV.ASSB.HHZ. 2023-04-01T00:23:14.12 0.3 undecidable manual S 218 33.4443 50 -0.12 70
IT.MTCL.HGZ. 2023-04-01T00:23:14.36 0.3 undecidable manual S 168 32.3454 50 0.4 66
IV.FRON.EHZ. 2023-04-01T00:23:13.50 0.1 undecidable manual S 330 30.5472 50 0.02 96
IV.FDMO.HHZ. 2023-04-01T00:23:13.38 0.1 undecidable manual S 153 30.3474 50 -0.03 96
IV.CESI.HHZ. 2023-04-01T00:23:13.28 0.1 undecidable manual S 182 30.4473 50 -0.16 94
IV.CING.HNZ. 2023-04-01T00:23:12.10 0.3 undecidable manual S 65 25.0527 50 0.09 72
IV.ARVD.HHZ. 2023-04-01T00:23:11.90 0.1 undecidable manual S 5 24.3534 50 0.06 96
IV.NARO.HHZ. 2023-04-01T00:23:11.22 0.1 undecidable manual P 324 45.621 50 -0.07 93
IV.ATSC.EHE. 2023-04-01T00:23:11.74 0.1 undecidable manual S 311 24.4533 50 -0.11 96
IV.MML1.EHZ. 2023-04-01T00:23:10.41 0.1 undecidable manual S 166 18.9699 50 0.04 98
IV.SSFR.HHZ. 2023-04-01T00:23:10.77 0.3 undecidable manual S 329 20.4684 50 -0.01 74
IT.MTCL.HGZ. 2023-04-01T00:23:09.19 1.0 undecidable manual P 168 32.3454 50 -0.06 24
IV.EL6.EHZ. 2023-04-01T00:23:09.65 0.3 undecidable manual S 100
IV.ASSB.HHZ. 2023-04-01T00:23:09.92 0.3 undecidable manual P 218 33.4443 50 0.51 65
IV.FDMO.HHZ. 2023-04-01T00:23:08.84 0.1 undecidable manual P 153 30.3474 50 -0.09 95
IV.CESI.HHZ. 2023-04-01T00:23:08.82 0.1 undecidable manual P 182 30.4473 50 -0.13 94
IV.FOSV.EHZ. 2023-04-01T00:23:08.50 0.1 undecidable manual S 278 12.4764 131 -0.07 98
IV.FRON.EHZ. 2023-04-01T00:23:08.81 0.1 undecidable manual P 330 30.5472 50 -0.16 94
IV.CING.HNZ. 2023-04-01T00:23:07.40 1.0 undecidable manual P 65 25.0527 50 -0.72 20
IV.MML1.EHZ. 2023-04-01T00:23:07.13 0.1 undecidable manual P 166 18.9699 50 -0.05 98
IV.SSFR.HHZ. 2023-04-01T00:23:07.37 0.6 undecidable manual P 329 20.4684 50 -0.05 49
IV.ATSC.EHE. 2023-04-01T00:23:07.90 0.3 undecidable manual P 311 24.4533 50 -0.13 71
IV.ARVD.HHZ. 2023-04-01T00:23:07.93 0.1 undecidable manual P 5 24.3534 50 -0.09 96
IV.FIU1.HNZ. 2023-04-01T00:23:07.85 0.3 undecidable manual S 172 10.0788 137 -0.12 73
IV.FOSV.EHZ. 2023-04-01T00:23:06.21 0.1 undecidable manual P 278 12.4764 131 0.07 98
IV.SNTG.HHZ. 2023-04-01T00:23:06.83 0.1 undecidable manual S 142 3.3966 163 0.06 100
IV.FIU1.HNZ. 2023-04-01T00:23:05.86 0.3 undecidable manual P 172 10.0788 137 0.07 74
IV.SNTG.HHZ. 2023-04-01T00:23:05.20 0.1 undecidable manual P 142 3.3966 163 0.1 99
IV.SEF1.HNZ. 2023-04-01T00:23:03.99 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SNTG.HHN. ML:1.1 0.0002 0.16 AML other m 2023-04-01T00:23:06.85
IV.SNTG.HHE. ML:0.9 0.00009830927 0.1 AML other m 2023-04-01T00:23:07.05
IV.FOSV.EHE. ML:1.0 0.00009805 1.08 AML other m 2023-04-01T00:23:09.58
IV.FOSV.EHN. ML:0.9 0.0000824 0.5 AML other m 2023-04-01T00:23:09.70
IV.MML1.EHN. ML:1.1 0.00010314999999999999 0.16 AML other m 2023-04-01T00:23:10.70
IV.MML1.EHE. ML:1.1 0.000107 0.24 AML other m 2023-04-01T00:23:10.51
IV.FDMO.HHE. ML:1.0 0.000046450000000000004 0.98 AML other m 2023-04-01T00:23:13.73
IV.FDMO.HHN. ML:1.1 0.000053849999999999994 0.94 AML other m 2023-04-01T00:23:14.66
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