Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 21-02-2023 and time 01:19:01 (Italy) in region 2 km SE Treia (MC)

A magnitude ML 0.8 earthquake occured in region: 2 km SE Treia (MC), on

  • 21-02-2023 00:19:01 (UTC)
  • 21-02-2023 01:19:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.2980, 13.3320 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Treia MC 2 9403 9403
Pollenza MC 4 6618 16021
Appignano MC 8 4213 20234
Macerata MC 10 42473 62707
Tolentino MC 11 20069 82776
Montecassiano MC 11 7125 89901
Urbisaglia MC 12 2628 92529
Cingoli MC 13 10352 102881
Petriolo MC 14 1998 104879
San Severino Marche MC 15 12726 117605
Colmurano MC 15 1263 118868
Corridonia MC 15 15430 134298
Filottrano AN 16 9499 143797
Montefano MC 16 3541 147338
Loro Piceno MC 16 2401 149739
Belforte del Chienti MC 17 1886 151625
Mogliano MC 17 4696 156321
Ripe San Ginesio MC 17 852 157173
Serrapetrona MC 18 966 158139
Staffolo AN 19 2253 160392
Camporotondo di Fiastrone MC 19 563 160955
Apiro MC 19 2280 163235
Caldarola MC 20 1823 165058
Montelupone MC 20 3596 168654

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km SW of Ancona (100861 inhabitants)
64 Km NE of Foligno (57155 inhabitants)
66 Km SE of Fano (60888 inhabitants)
76 Km SE of Pesaro (94582 inhabitants)
77 Km NW of Teramo (54892 inhabitants)
79 Km E of Perugia (166134 inhabitants)
99 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 0.8 2023-02-21
00:19:01		 43.2983 13.332 9 2024-03-01
17:17:57		 Bollettino Sismico Italiano INGV 114963891
Reviewed
Rev100 		ML 0.8 2023-02-21
00:19:01		 43.2992 13.3303 9 2023-02-21
00:37:45		 Sala Sismica INGV-Roma 114639241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-21 00:19:01 ± 0.07
Latitude 43.2983 ± 0.0036
Longitude 13.3320 ± 0.0062
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 114963891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 501
Semi-minor axis of confidence ellipse (meter) 288
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 78
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.49103
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:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 114963891
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-03-03 13:11:56

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 114639241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-21 00:37:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTQR.HHZ. 2023-02-21T00:19:35.52 3.0 undecidable manual S -1.11 0
IV.NRCA.HHZ. 2023-02-21T00:19:19.20 0.3 undecidable manual S 199 54.501 50 0.24 68
IV.MC2.EHZ. 2023-02-21T00:19:16.62 0.3 undecidable manual S 195 44.4222 50 0.34 67
IV.MML1.EHZ. 2023-02-21T00:19:14.02 0.3 undecidable manual S 235 35.6421 50 0.1 72
IV.ARVD.HHE. 2023-02-21T00:19:14.94 0.3 undecidable manual S 305 38.5281 50 0.25 69
IV.MF5.EHZ. 2023-02-21T00:19:14.26 0.3 undecidable manual S 163 35.9418 50 0.25 70
IV.AOI.HHE. 2023-02-21T00:19:13.98 0.6 undecidable manual S 38 35.4423 50 0.12 48
IV.FDMO.HHZ. 2023-02-21T00:19:13.79 0.3 undecidable manual S 214 35.1426 50 -0.01 73
IV.SNTG.HHE. 2023-02-21T00:19:12.89 0.6 undecidable manual S 261 31.9458 50 -0.06 49
IV.NRCA.HHZ. 2023-02-21T00:19:11.15 0.3 undecidable manual P 199 54.501 50 -0.43 65
IV.CSP1.EHZ. 2023-02-21T00:19:11.16 0.3 undecidable manual S 204 25.1526 110 0.41 69
IV.GUMA.HHZ. 2023-02-21T00:19:11.21 0.3 undecidable manual S 179 26.1516 109 0.12 73
IV.MNTP.HNZ. 2023-02-21T00:19:09.92 0.6 undecidable manual S 148 21.0678 113 0.49 45
IV.MC2.EHZ. 2023-02-21T00:19:09.80 0.1 undecidable manual P 195 44.4222 50 -0.23 92
IV.FDMO.HHZ. 2023-02-21T00:19:08.25 0.3 undecidable manual P 214 35.1426 50 -0.35 68
IV.MF5.EHZ. 2023-02-21T00:19:08.45 0.1 undecidable manual P 163 35.9418 50 -0.27 93
IV.MML1.EHZ. 2023-02-21T00:19:08.45 0.6 undecidable manual P 235 35.6421 50 -0.22 47
IV.AOI.HHE. 2023-02-21T00:19:08.73 0.1 undecidable manual P 38 35.4423 50 0.09 96
IV.ARVD.HHE. 2023-02-21T00:19:08.88 0.1 undecidable manual P 305 38.5281 50 -0.23 93
IV.CING.HHZ. 2023-02-21T00:19:07.71 0.6 undecidable manual S 308 13.9749 123 0.45 46
IV.SNTG.HHE. 2023-02-21T00:19:07.88 0.1 undecidable manual P 261 31.9458 50 -0.23 94
Y1.T1714.EHE. 2023-02-21T00:19:06.41 0.3 undecidable manual P 15 20.4684 114 0.44 69
IV.CSP1.EHZ. 2023-02-21T00:19:06.65 0.3 undecidable manual P 204 25.1526 110 -0.19 72
IV.GUMA.HHZ. 2023-02-21T00:19:06.93 0.6 negative manual P 179 26.1516 109 -0.1 49
IV.EL6.EHE. 2023-02-21T00:19:05.87 0.1 undecidable manual P 281 18.87 115 0.18 97
IV.MNTP.HNZ. 2023-02-21T00:19:05.94 0.1 undecidable manual P 148 21.0678 113 -0.14 98
IV.CING.HHZ. 2023-02-21T00:19:04.99 0.3 undecidable manual P 308 13.9749 123 0.17 74
IV.TRE1.HNE. 2023-02-21T00:19:04.26 0.3 undecidable manual S 313 2.0979 167 -0.44 71
IV.TRE1.HNE. 2023-02-21T00:19:03.16 0.1 undecidable manual P 313 2.0979 167 -0.18 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUMA.HHE. ML:0.9 0.000047149999999999994 0.42 AML other m 2023-02-21T00:19:12.48
IV.GUMA.HHN. ML:0.9 0.0000478 0.38 AML other m 2023-02-21T00:19:12.33
IV.FDMO.HHN. ML:0.6 0.00001278 1.58 AML other m 2023-02-21T00:19:13.89
IV.FDMO.HHE. ML:0.7 0.000021674999999999998 0.28 AML other m 2023-02-21T00:19:13.85
IV.NRCA.HHE. ML:0.8 0.000017250000000000003 0.64 AML other m 2023-02-21T00:19:20.30
IV.NRCA.HHN. ML:0.8 0.000016899999999999997 0.48 AML other m 2023-02-21T00:19:25.41
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