Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 26-04-2022 and time 12:02:44 (Italy) in region 6 km NW Arquata del Tronto (AP)

A magnitude ML 1.2 earthquake occured in region: 6 km NW Arquata del Tronto (AP), on

  • 26-04-2022 10:02:44 (UTC)
  • 26-04-2022 12:02:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8130, 13.2500 at 12 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
Arquata del Tronto AP 6 1178 1178
Montegallo AP 8 523 1701
Montemonaco AP 12 604 2305
Castelsantangelo sul Nera MC 12 281 2586
Norcia PG 13 4957 7543
Accumoli RI 13 667 8210
Acquasanta Terme AP 14 2916 11126
Montefortino FM 16 1178 12304
Ussita MC 17 444 12748
Visso MC 19 1107 13855
Preci PG 19 724 14579
Roccafluvione AP 19 2010 16589
Palmiano AP 20 196 16785

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
47 Km E of Foligno (57155 inhabitants)
53 Km N of L'Aquila (69753 inhabitants)
57 Km NE of Terni (111501 inhabitants)
77 Km E of Perugia (166134 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
88 Km W of Pescara (121014 inhabitants)
91 Km NW of Chieti (51815 inhabitants)
92 Km S of Ancona (100861 inhabitants)
100 Km NE of Guidonia Montecelio (88673 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 1.2 2022-04-26
10:02:44		 42.8132 13.2498 12 2022-04-26
10:17:42		 Sala Sismica INGV-Roma 103795661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-04-26 10:02:44 ± 0.1
Latitude 42.8132 ± 0.0045
Longitude 13.2498 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 103795661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 467
Semi-minor axis of confidence ellipse (meter) 218
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 336
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.06385
Epicentral distance of station farthest from the epicenter (degree) 0.36153
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 103795661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-04-26 10:17:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2022-04-26T10:02:56.03 0.3 undecidable manual S 126 35.742 92 -0.36 67
IV.CESI.HHZ. 2022-04-26T10:02:56.37 0.1 undecidable manual S 307 35.2425 92 0.13 94
IV.CSP1.EHE. 2022-04-26T10:02:55.07 0.1 undecidable manual S 353 31.1466 92 -0.09 95
IV.FDMO.HHZ. 2022-04-26T10:02:54.06 0.1 undecidable manual S 332 28.0497 92 -0.28 91
IV.LNSS.HHE. 2022-04-26T10:02:54.58 0.3 undecidable manual S 216 28.9488 92 0.01 72
IV.MNTP.HNE. 2022-04-26T10:02:52.74 0.3 undecidable manual P 26 40.1265 91 0.75 58
IV.TERO.HHZ. 2022-04-26T10:02:51.37 1.0 undecidable manual P 126 35.742 92 0.05 24
IV.CESI.HHZ. 2022-04-26T10:02:51.69 0.6 undecidable manual P 307 35.2425 92 0.46 44
IV.CSP1.EHE. 2022-04-26T10:02:50.32 0.3 undecidable manual P 353 31.1466 92 -0.28 68
IV.FDMO.HHZ. 2022-04-26T10:02:50.08 0.6 undecidable manual P 332 28.0497 92 -0.06 48
IV.MC2.EHZ. 2022-04-26T10:02:50.30 0.3 undecidable manual S 336 11.9769 115 0.19 72
IV.LNSS.HHE. 2022-04-26T10:02:50.28 0.6 undecidable manual P 216 28.9488 92 0.02 48
IV.GAVE.EHN. 2022-04-26T10:02:50.77 0.3 undecidable manual P 245 31.9458 92 0.04 72
IV.NRCA.HHZ. 2022-04-26T10:02:49.76 0.1 undecidable manual S 282 11.2776 118 -0.18 97
7F.SIB2.EHE. 2022-04-26T10:02:49.42 0.1 undecidable manual S 27 9.6792 126 -0.16 97
IV.MMO1.EHZ. 2022-04-26T10:02:49.95 0.1 undecidable manual S 33 11.4774 118 -0.03 99
7F.SIB1.EHE. 2022-04-26T10:02:49.71 0.1 undecidable manual S 10 9.1797 128 0.23 96
7F.SIB3.EHE. 2022-04-26T10:02:48.95 0.1 undecidable manual S 13 7.0929 139 -0.11 98
7F.SIB3.EHE. 2022-04-26T10:02:47.06 0.1 undecidable manual P 13 7.0929 139 -0.03 100
IV.MC2.EHZ. 2022-04-26T10:02:47.81 0.6 negative manual P 336 11.9769 115 0.12 49
7F.SIB1.EHE. 2022-04-26T10:02:47.49 0.1 undecidable manual P 10 9.1797 128 0.16 97
IV.NRCA.HHZ. 2022-04-26T10:02:47.53 0.1 undecidable manual P 282 11.2776 118 -0.06 99
7F.SIB2.EHE. 2022-04-26T10:02:47.34 0.1 undecidable manual P 27 9.6792 126 -0.05 99
IV.MMO1.EHZ. 2022-04-26T10:02:47.64 0.3 undecidable manual P 33 11.4774 118 0.03 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.7 0.0005075 0.1 AML other m 2022-04-26T10:02:49.87
IV.NRCA.HHN. ML:1.6 0.000456 0.1 AML other m 2022-04-26T10:02:49.87
IV.MMO1.EHN. ML:1.1 0.00014510861 0.0384 AML other m 2022-04-26T10:02:50.02
IV.MMO1.EHE. ML:1.2 0.00015802668000000001 0.0384 AML other m 2022-04-26T10:02:50.04
IV.NRCA.HNE. ML:1.7 0.0004911909 0.16 AML other m 2022-04-26T10:02:49.88
IV.NRCA.HNN. ML:1.6 0.00040129065 0.1024 AML other m 2022-04-26T10:02:49.93
IV.MC2.EHE. ML:0.8 0.00007155301 0.0768 AML other m 2022-04-26T10:02:50.67
IV.MC2.EHN. ML:1.0 0.000112474005 0.16 AML other m 2022-04-26T10:02:51.86
IV.TERO.HHE. ML:0.9 0.000029934624999999998 0.4416 AML other m 2022-04-26T10:03:11.89
IV.TERO.HHN. ML:0.4 0.00000991232795 0.0768 AML other m 2022-04-26T10:02:57.60
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