Earthquake (quarry blast) with magnitude of ML 0.9 on date 07-04-2023 and time 12:56:47 (UTC) in region 5 km W Treia (MC)

A magnitude ML 0.9 (quarry blast) earthquake occured in region: 5 km W Treia (MC), on

  • 07-04-2023 12:56:47 (UTC)
  • 07-04-2023 14:56:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3180, 13.2490 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Treia MC 5 9403 9403
Cingoli MC 7 10352 19755
Appignano MC 10 4213 23968
Pollenza MC 10 6618 30586
San Severino Marche MC 11 12726 43312
Tolentino MC 12 20069 63381
Apiro MC 13 2280 65661
Staffolo AN 14 2253 67914
Poggio San Vicino MC 15 246 68160
Filottrano AN 16 9499 77659
Montecassiano MC 16 7125 84784
Serrapetrona MC 16 966 85750
San Paolo di Jesi AN 16 933 86683
Macerata MC 17 42473 129156
Gagliole MC 17 620 129776
Belforte del Chienti MC 17 1886 131662
Urbisaglia MC 17 2628 134290
Cupramontana AN 18 4756 139046
Montefano MC 19 3541 142587
Colmurano MC 19 1263 143850
Castelraimondo MC 20 4587 148437
Caldarola MC 20 1823 150260

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km SW of Ancona (100861 inhabitants)
60 Km NE of Foligno (57155 inhabitants)
61 Km SE of Fano (60888 inhabitants)
71 Km SE of Pesaro (94582 inhabitants)
74 Km E of Perugia (166134 inhabitants)
82 Km NW of Teramo (54892 inhabitants)
97 Km NE of Terni (111501 inhabitants)
99 Km SE of Rimini (147750 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 0.9 2023-04-07
12:56:47
43.3183 13.2487 1 2024-03-01
17:18:04
Bollettino Sismico Italiano INGV 116516071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-07 12:56:47 ± 0.26
Latitude 43.3183 ± 0.0081
Longitude 13.2487 ± 0.0247
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 116516071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2050
Semi-minor axis of confidence ellipse (meter) 670
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 252
Circular confidence region, given by single value of horizontal uncertainty (meter) 2050.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 222
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
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) 0.06925
Epicentral distance of station farthest from the epicenter (degree) 0.30487
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 116516071
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-18 10:13:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2023-04-07T12:56:53.78 0.1 undecidable manual P 203 33.8439 91 -0.28 91
IV.SNTG.HHZ. 2023-04-07T12:56:52.26 0.6 undecidable manual P 254 25.8519 91 -0.19 47
IV.CSP1.EHZ. 2023-04-07T12:56:52.45 0.1 undecidable manual P 188 25.3524 91 0.09 96
IV.PF6.EHN. 2023-04-07T12:56:51.53 0.1 undecidable manual P 192 20.4684 91 0.15 96
IV.EL6.EHZ. 2023-04-07T12:56:49.85 0.1 undecidable manual P 276 11.877 92 0.19 97
IV.CING.HHZ. 2023-04-07T12:56:48.75 0.1 undecidable manual P 326 7.6812 94 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHN. ML:1.2 0.00009484999999999999 0.4 AML other m 2023-04-07T12:56:58.76
IV.FDMO.HHN. ML:0.7 0.0000212 0.42 AML other m 2023-04-07T12:57:00.90
IV.CSP1.EHE. ML:0.9 0.00005715000000000001 1.18 AML other m 2023-04-07T12:57:01.07
IV.FDMO.HHE. ML:0.7 0.0000218 1.06 AML other m 2023-04-07T12:57:01.12
IV.ASSB.HHE. ML:1.0 0.000019950000000000004 0.44 AML other m 2023-04-07T12:57:06.66
IV.ASSB.HHN. ML:1.0 0.000017855 0.2 AML other m 2023-04-07T12:57:06.74
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