Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 21-02-2023 and time 02:31:35 (Italy) in region 2 km NW Pollenza (MC)

A magnitude ML 1.4 earthquake occured in region: 2 km NW Pollenza (MC), on

  • 21-02-2023 01:31:35 (UTC)
  • 21-02-2023 02:31:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.2800, 13.3310 at 9 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
Pollenza MC 2 6618 6618
Treia MC 4 9403 16021
Tolentino MC 9 20069 36090
Appignano MC 10 4213 40303
Urbisaglia MC 10 2628 42931
Macerata MC 10 42473 85404
Montecassiano MC 13 7125 92529
Petriolo MC 13 1998 94527
Colmurano MC 13 1263 95790
San Severino Marche MC 14 12726 108516
Cingoli MC 14 10352 118868
Loro Piceno MC 14 2401 121269
Belforte del Chienti MC 15 1886 123155
Corridonia MC 15 15430 138585
Ripe San Ginesio MC 15 852 139437
Mogliano MC 16 4696 144133
Serrapetrona MC 16 966 145099
Camporotondo di Fiastrone MC 17 563 145662
Montefano MC 17 3541 149203
Filottrano AN 18 9499 158702
Caldarola MC 18 1823 160525
Massa Fermana FM 19 963 161488
San Ginesio MC 19 3498 164986
Montappone FM 20 1682 166668
Francavilla d'Ete FM 20 964 167632
Cessapalombo MC 20 512 168144

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SW of Ancona (100861 inhabitants)
62 Km NE of Foligno (57155 inhabitants)
68 Km SE of Fano (60888 inhabitants)
75 Km NW of Teramo (54892 inhabitants)
78 Km SE of Pesaro (94582 inhabitants)
79 Km E of Perugia (166134 inhabitants)
97 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
Bulletin
Rev1000 		ML 1.4 2023-02-21
01:31:35		 43.2802 13.3307 9 2024-03-01
17:17:58		 Bollettino Sismico Italiano INGV 115387091
Reviewed
Rev100 		ML 1.4 2023-02-21
01:31:35		 43.2913 13.3363 9 2023-02-21
01:38:23		 Sala Sismica INGV-Roma 114642251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-21 01:31:35 ± 0.06
Latitude 43.2802 ± 0.0027
Longitude 13.3307 ± 0.0049
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115387091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 400
Semi-minor axis of confidence ellipse (meter) 116
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 67
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.03327
Epicentral distance of station farthest from the epicenter (degree) 0.77522
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 115387091
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-03-15 08:15:19

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 114642251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-21 01:38:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RM33.EHZ. 2023-02-21T01:31:50.04 1.0 undecidable manual P 186 86.0472 50 -0.13 22
IV.MMO1.EHZ. 2023-02-21T01:31:49.44 0.3 undecidable manual S 180 42.2244 50 -0.02 72
IV.MC2.EHZ. 2023-02-21T01:31:49.88 0.3 undecidable manual S 196 42.5241 50 0.36 67
IV.TERO.HHZ. 2023-02-21T01:31:49.11 0.1 undecidable manual P 163 76.2681 50 0.45 82
IV.SMA1.EHZ. 2023-02-21T01:31:48.29 0.6 undecidable manual P 180 72.0723 50 0.28 43
IV.PIEI.HHZ. 2023-02-21T01:31:47.87 0.6 undecidable manual P 294 70.0743 50 0.16 44
IV.MURB.HHZ. 2023-02-21T01:31:47.27 0.6 undecidable manual P 269 65.0904 50 0.32 43
IV.AOI.HHE. 2023-02-21T01:31:47.96 0.3 undecidable manual S 36 37.0296 50 -0.12 71
IV.MML1.EHZ. 2023-02-21T01:31:47.27 0.6 undecidable manual S 238 34.4433 50 -0.1 48
IV.MNTT.EHZ. 2023-02-21T01:31:46.88 0.3 undecidable manual S 138 32.3454 105 0.11 72
IV.SNTG.HHZ. 2023-02-21T01:31:46.50 0.6 undecidable manual S 265 31.6461 105 -0.04 49
IV.FDMO.HHZ. 2023-02-21T01:31:46.74 0.6 undecidable manual S 216 33.4443 50 -0.37 45
IV.NRCA.HHZ. 2023-02-21T01:31:44.63 0.6 undecidable manual P 200 52.503 50 -0.38 44
IV.GUMA.HHZ. 2023-02-21T01:31:44.46 0.6 undecidable manual S 179 24.1536 110 0.41 46
IV.CSP1.EHZ. 2023-02-21T01:31:44.20 0.6 undecidable manual S 206 23.2545 110 0.44 45
IV.SAP2.EHE. 2023-02-21T01:31:43.23 0.3 undecidable manual S 165 21.0678 112 0.16 72
IV.CESI.HHZ. 2023-02-21T01:31:43.81 1.0 undecidable manual P 229 46.0206 50 -0.2 23
IV.MMO1.EHZ. 2023-02-21T01:31:43.13 0.6 undecidable manual P 180 42.2244 50 -0.29 45
IV.MC2.EHZ. 2023-02-21T01:31:43.13 0.1 undecidable manual P 196 42.5241 50 -0.33 90
Y1.T1742.EHZ. 2023-02-21T01:31:43.15 0.1 undecidable manual P 345 38.628 50 0.28 91
IV.AOI.HHE. 2023-02-21T01:31:42.54 0.6 undecidable manual P 36 37.0296 50 -0.08 48
IV.MNTP.HNZ. 2023-02-21T01:31:42.99 0.6 undecidable manual S 145 19.3695 114 0.46 45
IV.PF6.EHN. 2023-02-21T01:31:42.46 0.6 undecidable manual S 215 19.2696 114 -0.02 50
IV.EL6.EHZ. 2023-02-21T01:31:42.97 0.3 undecidable manual S 287 19.2696 114 0.48 68
IV.MF5.EHZ. 2023-02-21T01:31:42.02 0.6 negative manual P 162 34.0437 50 -0.14 47
IV.FDMO.HHZ. 2023-02-21T01:31:41.58 0.6 negative manual P 216 33.4443 50 -0.48 44
IV.MML1.EHZ. 2023-02-21T01:31:41.91 0.6 negative manual P 238 34.4433 50 -0.3 46
IV.CING.HHZ. 2023-02-21T01:31:41.37 0.3 undecidable manual S 314 15.1737 119 0.15 73
IV.MNTT.EHZ. 2023-02-21T01:31:41.74 0.1 undecidable manual P 138 32.3454 105 -0.13 95
IV.SNTG.HHZ. 2023-02-21T01:31:41.46 0.6 negative manual P 265 31.6461 105 -0.27 46
Y1.T1714.EHE. 2023-02-21T01:31:40.44 0.1 undecidable manual P 14 22.4553 111 0.46 90
IV.CSP1.EHZ. 2023-02-21T01:31:40.01 1.0 negative manual P 206 23.2545 110 -0.12 24
IV.GUMA.HHZ. 2023-02-21T01:31:40.28 0.1 negative manual P 179 24.1536 110 -0.02 99
IV.EL6.EHZ. 2023-02-21T01:31:39.50 0.3 positive manual P 287 19.2696 114 0.11 74
IV.SAP2.EHE. 2023-02-21T01:31:39.50 0.1 undecidable manual P 165 21.0678 112 -0.23 95
IV.MNTP.HNZ. 2023-02-21T01:31:39.30 0.1 undecidable manual P 145 19.3695 114 -0.12 98
IV.PF6.EHN. 2023-02-21T01:31:39.30 0.1 undecidable manual P 215 19.2696 114 -0.09 98
IV.CING.HHZ. 2023-02-21T01:31:38.62 0.1 positive manual P 314 15.1737 119 -0.04 100
IV.TRE1.HNZ. 2023-02-21T01:31:37.84 0.3 undecidable manual S 337 3.6963 156 -0.57 68
IV.TRE1.HNZ. 2023-02-21T01:31:36.71 0.1 positive manual P 337 3.6963 156 -0.33 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CING.HHE. ML:1.1 0.0001255 0.42 AML other m 2023-02-21T01:31:42.48
IV.CING.HHN. ML:1.1 0.0001365 0.56 AML other m 2023-02-21T01:31:42.92
IV.EL6.EHN. ML:1.5 0.000235 1.54 AML other m 2023-02-21T01:31:43.17
IV.EL6.EHE. ML:1.4 0.00022049999999999997 0.48 AML other m 2023-02-21T01:31:43.60
IV.GUMA.HHN. ML:1.5 0.0001795 0.38 AML other m 2023-02-21T01:31:44.87
IV.SNTG.HHN. ML:1.4 0.0001121 0.52 AML other m 2023-02-21T01:31:46.92
IV.CSP1.EHE. ML:1.4 0.0001695 1.68 AML other m 2023-02-21T01:31:47.00
IV.SNTG.HHE. ML:0.9 0.0000361 1.36 AML other m 2023-02-21T01:31:47.13
IV.FDMO.HHE. ML:1.2 0.00007095 0.24 AML other m 2023-02-21T01:31:47.24
IV.GUMA.HHE. ML:1.7 0.00029600000000000004 0.36 AML other m 2023-02-21T01:31:47.29
IV.FDMO.HHN. ML:1.1 0.00005475 0.72 AML other m 2023-02-21T01:31:47.64
IV.MML1.EHN. ML:1.6 0.0001655 1.42 AML other m 2023-02-21T01:31:47.01
IV.MML1.EHE. ML:1.4 0.00010255 0.22 AML other m 2023-02-21T01:31:48.12
IV.MF5.EHE. ML:1.6 0.00016350000000000002 1.68 AML other m 2023-02-21T01:31:48.95
IV.CSP1.EHN. ML:1.4 0.00014749999999999998 1.62 AML other m 2023-02-21T01:31:48.93
IV.MNTT.EHN. ML:1.9 0.0003435 0.38 AML other m 2023-02-21T01:31:48.21
IV.MF5.EHN. ML:1.7 0.0002065 0.8 AML other m 2023-02-21T01:31:48.96
IV.MNTT.EHE. ML:1.8 0.000258 1.28 AML other m 2023-02-21T01:31:49.77
IV.PIEI.HHN. ML:1.1 0.00002005 0.42 AML other m 2023-02-21T01:31:50.03
IV.CESI.HHN. ML:1.3 0.0000569 0.22 AML other m 2023-02-21T01:31:51.23
IV.CESI.HHE. ML:1.2 0.00004565 0.7 AML other m 2023-02-21T01:31:51.91
IV.NRCA.HHE. ML:1.7 0.0001185 0.16 AML other m 2023-02-21T01:31:55.19
IV.NRCA.HHN. ML:1.6 0.0000991 0.4 AML other m 2023-02-21T01:31:55.27
IV.MURB.HHE. ML:1.8 0.0001145 1.78 AML other m 2023-02-21T01:31:58.91
IV.MURB.HHN. ML:1.6 0.0000823 0.3 AML other m 2023-02-21T01:31:59.10
IV.PIEI.HHE. ML:1.1 0.0000222 1.48 AML other m 2023-02-21T01:32:01.19
IV.TERO.HHE. ML:1.4 0.00004215 0.16 AML other m 2023-02-21T01:32:01.38
IV.TERO.HHN. ML:1.5 0.00005225 0.1 AML other m 2023-02-21T01:32:01.78
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