Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 30-05-2023 and time 13:52:45 (UTC) in region 4 km NW Treia (MC)

A magnitude ML 0.9 earthquake occured in region: 4 km NW Treia (MC), on

  • 30-05-2023 13:52:45 (UTC)
  • 30-05-2023 15:52:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3330, 13.2670 at 8 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.

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 4 9403 9403
Cingoli MC 6 10352 19755
Appignano MC 7 4213 23968
Pollenza MC 10 6618 30586
Apiro MC 13 2280 32866
Staffolo AN 13 2253 35119
Filottrano AN 13 9499 44618
San Severino Marche MC 14 12726 57344
Tolentino MC 14 20069 77413
Montecassiano MC 14 7125 84538
Macerata MC 16 42473 127011
San Paolo di Jesi AN 16 933 127944
Poggio San Vicino MC 16 246 128190
Montefano MC 17 3541 131731
Urbisaglia MC 18 2628 134359
Cupramontana AN 18 4756 139115
Serrapetrona MC 18 966 140081
Santa Maria Nuova AN 19 4179 144260
Belforte del Chienti MC 19 1886 146146
Gagliole MC 19 620 146766
Monte Roberto AN 20 3061 149827
Castelbellino AN 20 4947 154774

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SW of Ancona (100861 inhabitants)
60 Km SE of Fano (60888 inhabitants)
62 Km NE of Foligno (57155 inhabitants)
70 Km SE of Pesaro (94582 inhabitants)
75 Km E of Perugia (166134 inhabitants)
83 Km NW of Teramo (54892 inhabitants)
99 Km SE of Rimini (147750 inhabitants)
100 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
Reviewed
Rev100 		ML 0.9 2023-05-30
13:52:45		 43.3328 13.2673 8 2023-05-30
14:06:11		 Sala Sismica INGV-Roma 117884591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-30 13:52:45 ± 0.23
Latitude 43.3328 ± 0.0081
Longitude 13.2673 ± 0.0173
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117884591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1470
Semi-minor axis of confidence ellipse (meter) 740
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 253
Circular confidence region, given by single value of horizontal uncertainty (meter) 1470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 225
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.06745
Epicentral distance of station farthest from the epicenter (degree) 0.43527
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 117884591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-30 14:06:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHE. 2023-05-30T13:52:58.09 0.6 undecidable manual S 204 35.9418 50 0.08 48
IV.MML1.EHZ. 2023-05-30T13:52:57.56 0.6 undecidable manual S 225 34.1436 50 0.04 49
IV.CSP1.EHZ. 2023-05-30T13:52:55.12 0.3 undecidable manual S 191 27.2505 107 -0.1 73
IV.CESI.HNE. 2023-05-30T13:52:54.48 0.6 undecidable manual P 219 46.7199 50 0.16 47
IV.MMO1.EHZ. 2023-05-30T13:52:53.94 0.6 undecidable manual P 174 48.3183 50 -0.63 41
IV.FDMO.HHE. 2023-05-30T13:52:52.73 0.3 undecidable manual P 204 35.9418 50 0.07 73
IV.MML1.EHZ. 2023-05-30T13:52:52.15 0.6 undecidable manual P 225 34.1436 50 -0.23 47
IV.CSP1.EHZ. 2023-05-30T13:52:51.44 0.6 undecidable manual P 191 27.2505 107 0.39 46
IV.EL6.EHZ. 2023-05-30T13:52:50.59 0.6 undecidable manual S 268 13.3755 122 -0.23 49
IV.EL6.EHZ. 2023-05-30T13:52:48.75 0.1 undecidable manual P 268 13.3755 122 0.24 97
IV.CING.HNZ. 2023-05-30T13:52:48.82 0.6 undecidable manual S 309 7.4814 138 -0.42 47
IV.CING.HNZ. 2023-05-30T13:52:47.76 0.1 undecidable manual P 309 7.4814 138 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EL6.EHE. ML:0.9 0.000086746685 0.224 AML other m 2023-05-30T13:52:51.44
IV.EL6.EHN. ML:1.1 0.0001281102 0.32 AML other m 2023-05-30T13:52:51.54
IV.MML1.EHN. ML:0.7 0.000022 1.7 AML other m 2023-05-30T13:52:59.05
IV.MML1.EHE. ML:0.6 0.000013439093 0.224 AML other m 2023-05-30T13:52:59.73
IV.CSP1.EHE. ML:1.1 0.00007485183000000001 0.224 AML other m 2023-05-30T13:52:57.15
IV.CSP1.EHN. ML:1.3 0.00009753927000000001 0.2816 AML other m 2023-05-30T13:52:58.70
IV.MMO1.EHE. ML:0.9 0.000020959104999999998 0.416 AML other m 2023-05-30T13:53:03.47
IV.MMO1.EHN. ML:0.7 0.00001678994 0.256 AML other m 2023-05-30T13:53:05.06
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