Earthquake with magnitude of ML 1.1 on date 21-02-2023 and time 02:06:22 (UTC) in region 3 km W Pollenza (MC)

A magnitude ML 1.1 earthquake occured in region: 3 km W Pollenza (MC), on

  • 21-02-2023 02:06:22 (UTC)
  • 21-02-2023 03:06:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.2800, 13.3190 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.

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 3 6618 6618
Treia MC 4 9403 16021
Tolentino MC 8 20069 36090
Appignano MC 10 4213 40303
Urbisaglia MC 10 2628 42931
Macerata MC 11 42473 85404
San Severino Marche MC 13 12726 98130
Colmurano MC 13 1263 99393
Montecassiano MC 13 7125 106518
Cingoli MC 14 10352 116870
Petriolo MC 14 1998 118868
Belforte del Chienti MC 14 1886 120754
Loro Piceno MC 15 2401 123155
Serrapetrona MC 15 966 124121
Ripe San Ginesio MC 16 852 124973
Corridonia MC 16 15430 140403
Mogliano MC 17 4696 145099
Camporotondo di Fiastrone MC 17 563 145662
Caldarola MC 17 1823 147485
Filottrano AN 18 9499 156984
Montefano MC 18 3541 160525
San Ginesio MC 19 3498 164023
Massa Fermana FM 19 963 164986
Cessapalombo MC 20 512 165498
Apiro MC 20 2280 167778

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SW of Ancona (100861 inhabitants)
62 Km NE of Foligno (57155 inhabitants)
67 Km SE of Fano (60888 inhabitants)
76 Km NW of Teramo (54892 inhabitants)
77 Km SE of Pesaro (94582 inhabitants)
78 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 1.1 2023-02-21
02:06:22
43.2795 13.3192 9 2024-03-01
17:17:58
Bollettino Sismico Italiano INGV 115388361
Reviewed
Rev100
ML 1.2 2023-02-21
02:06:22
43.2932 13.3373 9 2023-02-21
02:18:02
Sala Sismica INGV-Roma 114643651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-21 02:06:22 ± 0.05
Latitude 43.2795 ± 0.0036
Longitude 13.3192 ± 0.0037
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 115388361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 328
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 90
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.03238
Epicentral distance of station farthest from the epicenter (degree) 0.64841
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 115388361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-03-15 09:41:40

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 114643651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-21 02:18:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2023-02-21T02:06:37.24 0.6 undecidable manual S 179 42.1245 50 0.26 47
IV.MML1.EHZ. 2023-02-21T02:06:35.08 0.3 undecidable manual S 237 33.5442 50 0.39 69
IV.MF5.EHZ. 2023-02-21T02:06:35.27 0.6 undecidable manual S 161 34.3434 50 0.39 46
IV.SMA1.EHZ. 2023-02-21T02:06:35.29 0.1 undecidable manual P 179 71.9724 50 -0.27 88
IV.FDMO.HHZ. 2023-02-21T02:06:34.47 0.3 undecidable manual S 215 32.8449 50 -0.02 75
IV.MNTT.EHZ. 2023-02-21T02:06:34.76 0.3 undecidable manual S 137 32.9448 50 0.25 71
IV.SNTG.HHZ. 2023-02-21T02:06:33.92 0.6 undecidable manual S 265 30.747 106 0.1 49
IV.NRCA.HHZ. 2023-02-21T02:06:32.19 0.1 undecidable manual P 199 52.2033 50 -0.32 91
IV.GUMA.HHZ. 2023-02-21T02:06:32.02 0.6 undecidable manual S 177 24.0537 110 0.38 47
IV.PP3.EHZ. 2023-02-21T02:06:32.58 0.3 undecidable manual S 65 25.8519 109 0.37 71
Y1.T1714.EHZ. 2023-02-21T02:06:31.32 0.3 undecidable manual S 16 22.755 111 0.12 75
IV.CSP1.EHZ. 2023-02-21T02:06:31.38 0.6 undecidable manual S 204 22.755 111 0.17 49
IV.CESI.HHZ. 2023-02-21T02:06:31.39 0.6 negative manual P 228 45.3213 50 -0.06 48
IV.EL6.EHZ. 2023-02-21T02:06:30.01 0.3 undecidable manual S 288 18.3705 115 0.19 74
IV.MNTP.HNZ. 2023-02-21T02:06:30.72 0.6 undecidable manual S 142 19.869 114 0.43 47
IV.MMO1.EHZ. 2023-02-21T02:06:30.80 0.6 undecidable manual P 179 42.1245 50 -0.17 48
IV.MC2.EHZ. 2023-02-21T02:06:30.77 0.6 undecidable manual P 195 42.1245 50 -0.19 47
IV.MF5.EHZ. 2023-02-21T02:06:29.47 0.3 undecidable manual P 161 34.3434 50 -0.28 71
IV.FDMO.HHZ. 2023-02-21T02:06:29.15 0.3 undecidable manual P 215 32.8449 50 -0.38 70
IV.MNTT.EHZ. 2023-02-21T02:06:29.58 0.3 undecidable manual P 137 32.9448 50 0.04 75
IV.SNTG.HHZ. 2023-02-21T02:06:29.33 0.3 undecidable manual P 265 30.747 106 0.19 73
IV.MML1.EHZ. 2023-02-21T02:06:29.44 0.3 undecidable manual P 237 33.5442 50 -0.2 72
IV.CING.HHZ. 2023-02-21T02:06:29.05 0.6 undecidable manual S 317 14.5743 121 0.4 48
IV.PP3.EHZ. 2023-02-21T02:06:28.12 0.1 undecidable manual P 65 25.8519 109 -0.09 100
IV.GUMA.HHZ. 2023-02-21T02:06:27.84 0.3 undecidable manual P 177 24.0537 110 -0.04 76
IV.EL6.EHZ. 2023-02-21T02:06:27.01 0.3 undecidable manual P 288 18.3705 115 0.18 74
Y1.T1714.EHZ. 2023-02-21T02:06:27.73 0.1 undecidable manual P 16 22.755 111 0.1 100
IV.CSP1.EHZ. 2023-02-21T02:06:27.51 0.6 undecidable manual P 204 22.755 111 -0.12 50
IV.CING.HHZ. 2023-02-21T02:06:26.19 0.3 undecidable manual P 317 14.5743 121 0.03 77
IV.MNTP.HNZ. 2023-02-21T02:06:26.96 0.1 undecidable manual P 142 19.869 114 -0.14 100
IV.TRE1.HNZ. 2023-02-21T02:06:25.40 0.6 undecidable manual S 352 3.5964 158 -0.62 45
IV.TRE1.HNZ. 2023-02-21T02:06:24.20 0.1 undecidable manual P 352 3.5964 158 -0.44 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MNTT.EHN. ML:1.3 0.0000897 0.2 AML other m 2023-02-21T02:06:36.11
IV.MNTT.EHE. ML:1.2 0.00007604999999999999 0.18 AML other m 2023-02-21T02:06:36.33
IV.NRCA.HHE. ML:1.0 0.000026099999999999997 0.64 AML other m 2023-02-21T02:06:42.56
IV.NRCA.HHN. ML:1.0 0.00002365 1.18 AML other m 2023-02-21T02:06:43.16
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