Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.3 on date 26-04-2022 and time 11:50:08 (UTC) in region 1 km N Serra Sant'Abbondio (PU)

A magnitude ML 0.3 earthquake occured in region: 1 km N Serra Sant'Abbondio (PU), on

  • 26-04-2022 11:50:08 (UTC)
  • 26-04-2022 13:50:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5010, 12.7710 at 15 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.

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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
Serra Sant'Abbondio PU 1 1027 1027
Frontone PU 3 1300 2327
Pergola PU 9 6333 8660
Sassoferrato AN 10 7285 15945
Cagli PU 11 8731 24676
Cantiano PU 12 2245 26921
Scheggia e Pascelupo PG 14 1393 28314
Arcevia AN 14 4612 32926
Acqualagna PU 15 4393 37319
Genga AN 15 1797 39116
Costacciaro PG 16 1216 40332
Fratte Rosa PU 18 966 41298
San Lorenzo in Campo PU 18 3414 44712
Sigillo PG 19 2404 47116

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km SW of Fano (60888 inhabitants)
47 Km S of Pesaro (94582 inhabitants)
54 Km NE of Perugia (166134 inhabitants)
61 Km N of Foligno (57155 inhabitants)
62 Km W of Ancona (100861 inhabitants)
65 Km S of Rimini (147750 inhabitants)
72 Km E of Arezzo (99543 inhabitants)
83 Km SE of Cesena (96758 inhabitants)
99 Km SE of Forlì (117913 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 0.3 2022-04-26
11:50:08		 43.5007 12.7708 15 2022-04-26
20:45:10		 Sala Sismica INGV-Roma 103814201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-04-26 11:50:08 ± 0.11
Latitude 43.5007 ± 0.0036
Longitude 12.7708 ± 0.0062
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 103814201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 372
Semi-minor axis of confidence ellipse (meter) 370
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 293
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 223
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.17627
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 103814201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-04-26 20:45:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2022-04-26T11:50:16.63 0.6 undecidable manual S 309 19.5693 114 -0.06 49
IV.PIEI.HHZ. 2022-04-26T11:50:16.70 0.6 undecidable manual S 282 19.3695 114 0.06 50
IV.MPAG.EHZ. 2022-04-26T11:50:15.50 0.6 undecidable manual S 356 14.2746 125 0.04 50
IV.MF5.EHZ. 2022-04-26T11:50:15.57 3.0 undecidable manual Pg 0.07 0
IV.ATSC.EHZ. 2022-04-26T11:50:14.93 0.6 undecidable manual S 219 10.878 135 0.16 49
IV.PIEI.HHZ. 2022-04-26T11:50:13.31 0.6 positive manual P 282 19.3695 114 0 50
IV.NARO.HHZ. 2022-04-26T11:50:13.32 0.3 negative manual P 309 19.5693 114 -0.02 75
IV.FRON.EHZ. 2022-04-26T11:50:13.70 0.6 undecidable manual S 297 4.0959 161 -0.11 50
IV.CESI.HHZ. 2022-04-26T11:50:12.59 3.0 undecidable manual P -0.35 0
IV.ATSC.EHZ. 2022-04-26T11:50:12.15 0.1 undecidable manual P 219 10.878 135 -0.08 100
IV.MPAG.EHZ. 2022-04-26T11:50:12.64 0.6 undecidable manual P 356 14.2746 125 0.01 50
IV.FRON.EHZ. 2022-04-26T11:50:11.78 0.6 negative manual P 297 4.0959 161 0.11 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPAG.EHN. ML:0.0 0.000030100000000000003 0.08 AML other m 2022-04-26T11:50:15.53
IV.MPAG.EHE. ML:0.0 0.000034750000000000004 0.38 AML other m 2022-04-26T11:50:15.72
IV.FRON.EHE. ML:0.5 0.00003255193 0.0576 AML other m 2022-04-26T11:50:13.98
IV.FRON.EHN. ML:0.2 0.000020068165 0.1408 AML other m 2022-04-26T11:50:14.02
IV.PIEI.HHE. ML:0.2 0.0000084491275 0.0768 AML other m 2022-04-26T11:50:16.95
IV.PIEI.HHN. ML:-0.1 0.0000068693275 0.0768 AML other m 2022-04-26T11:50:16.82
IV.NARO.HHE. ML:-0.1 0.0000066656725 0.0576 AML other m 2022-04-26T11:50:17.53
IV.NARO.HHN. ML:0.2 0.000010198156999999999 0.0768 AML other m 2022-04-26T11:50:17.43
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