Earthquake with magnitude of ML 1.3 on date 04-05-2023 and time 20:34:54 (Italy) in region 1 km E Montecassiano (MC)

A magnitude ML 1.3 earthquake occured in region: 1 km E Montecassiano (MC), on

  • 04-05-2023 18:34:54 (UTC)
  • 04-05-2023 20:34:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3600, 13.4480 at 48 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
Montecassiano MC 1 7125 7125
Montefano MC 6 3541 10666
Macerata MC 7 42473 53139
Appignano MC 8 4213 57352
Recanati MC 10 21349 78701
Montelupone MC 10 3596 82297
Filottrano AN 12 9499 91796
Morrovalle MC 12 10195 101991
Treia MC 12 9403 111394
Pollenza MC 13 6618 118012
Corridonia MC 13 15430 133442
Potenza Picena MC 14 15936 149378
Castelfidardo AN 14 18733 168111
Osimo AN 14 34977 203088
Petriolo MC 15 1998 205086
Loreto AN 16 12814 217900
Montecosaro MC 16 7113 225013
Monte San Giusto MC 18 8191 233204
Offagna AN 19 1935 235139
Cingoli MC 19 10352 245491
Santa Maria Nuova AN 19 4179 249670
Urbisaglia MC 19 2628 252298
Polverigi AN 19 4508 256806
Porto Recanati MC 19 12531 269337
Mogliano MC 19 4696 274033

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km S of Ancona (100861 inhabitants)
64 Km SE of Fano (60888 inhabitants)
75 Km SE of Pesaro (94582 inhabitants)
75 Km NE of Foligno (57155 inhabitants)
81 Km N of Teramo (54892 inhabitants)
90 Km E of Perugia (166134 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 1.3 2023-05-04
18:34:54
43.36 13.4483 48 2023-05-04
18:46:45
Sala Sismica INGV-Roma 117026541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-04 18:34:54 ± 0.18
Latitude 43.3600 ± 0.0063
Longitude 13.4483 ± 0.0136
Depth (km) 48 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117026541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 886
Semi-minor axis of confidence ellipse (meter) 594
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 270
Circular confidence region, given by single value of horizontal uncertainty (meter) 890.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 161
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.68528
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 117026541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-04 18:46:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHE. 2023-05-04T18:35:18.04 0.6 undecidable manual S 285 76.0683 106 0.02 45
IV.VCEL.EHZ. 2023-05-04T18:35:16.28 3.0 undecidable manual Sn -0.17 0
IV.TSM5.DHE. 2023-05-04T18:35:16.87 0.6 undecidable manual S 281 69.4749 108 0.23 44
IV.FRON.EHN. 2023-05-04T18:35:14.86 0.3 undecidable manual S 287 60.7947 113 -0.04 71
IV.SSFR.HHE. 2023-05-04T18:35:13.67 0.3 undecidable manual S 279 54.3012 117 0.04 70
IV.MMO1.EHZ. 2023-05-04T18:35:13.37 0.6 undecidable manual S 191 52.0035 119 0.17 47
IV.MML1.EHZ. 2023-05-04T18:35:12.49 0.3 undecidable manual S 235 47.2194 122 0.19 69
IV.AOI.HHE. 2023-05-04T18:35:09.04 0.6 undecidable manual S 30 24.4533 146 0.29 49
IV.EL6.EHZ. 2023-05-04T18:35:09.06 0.6 undecidable manual S 263 28.1496 141 -0.17 50
IV.CING.HHZ. 2023-05-04T18:35:07.94 0.3 undecidable manual S 275 20.4684 151 -0.36 72
IV.PIEI.HHE. 2023-05-04T18:35:07.88 0.1 undecidable manual P 285 76.0683 106 -0.01 92
IV.ATBU.HNZ. 2023-05-04T18:35:07.89 0.3 undecidable manual P 280 73.6707 107 0.29 66
IV.FRON.EHN. 2023-05-04T18:35:06.00 0.1 undecidable manual P 287 60.7947 113 -0.09 93
IV.MPAG.HNZ. 2023-05-04T18:35:06.52 0.1 undecidable manual P 299 62.9925 112 0.18 92
IV.ATSC.EHE. 2023-05-04T18:35:06.00 0.1 undecidable manual P 277 61.7937 112 -0.21 91
IV.TSM5.DHE. 2023-05-04T18:35:06.85 0.1 undecidable manual P 281 69.4749 108 -0.25 89
IV.MMO1.EHZ. 2023-05-04T18:35:05.13 0.3 undecidable manual P 191 52.0035 119 0.02 72
IV.CESI.HHZ. 2023-05-04T18:35:05.95 0.1 undecidable manual P 228 58.9965 114 0.06 95
IV.SSFR.HHE. 2023-05-04T18:35:05.29 0.1 undecidable manual P 279 54.3012 117 -0.08 95
IV.AOI.HHE. 2023-05-04T18:35:04.05 1.0 undecidable manual P 30 24.4533 146 1.5 15
IV.MML1.EHZ. 2023-05-04T18:35:04.62 0.1 undecidable manual P 235 47.2194 122 0.02 97
IV.CING.HHZ. 2023-05-04T18:35:02.11 0.1 undecidable manual P 275 20.4684 151 -0.18 98
IV.EL6.EHZ. 2023-05-04T18:35:02.79 0.1 undecidable manual P 263 28.1496 141 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHE. ML:1.2 0.00002975 0.24 AML other m 2023-05-04T18:35:12.80
IV.MML1.EHN. ML:1.1 0.000025849999999999998 0.34 AML other m 2023-05-04T18:35:12.68
IV.EL6.EHE. ML:1.1 0.000027701445 0.32 AML other m 2023-05-04T18:35:09.43
IV.EL6.EHN. ML:1.2 0.0000397943 0.3328 AML other m 2023-05-04T18:35:09.37
IV.MML1.HNE. ML:1.8 0.00010719813000000001 0.832 AML other m 2023-05-04T18:35:25.68
IV.MML1.HNN. ML:1.9 0.000141586235 0.9088 AML other m 2023-05-04T18:35:13.47
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