Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 26-05-2021 and time 08:52:19 (UTC) in region 4 km W Crognaleto (TE)

A magnitude ML 1.2 earthquake occured in region: 4 km W Crognaleto (TE), on

  • 26-05-2021 08:52:19 (UTC)
  • 26-05-2021 10:52:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5630, 13.4420 at 16 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
Crognaleto TE 4 1297 1297
Campotosto AQ 6 542 1839
Fano Adriano TE 8 296 2135
Cortino TE 9 656 2791
Pietracamela TE 10 271 3062
Capitignano AQ 12 665 3727
Amatrice RI 15 2657 6384
Rocca Santa Maria TE 15 537 6921
Montorio al Vomano TE 16 8218 15139
Montereale AQ 17 2581 17720
Tossicia TE 17 1406 19126
Barete AQ 18 737 19863
Pizzoli AQ 18 4326 24189
Isola del Gran Sasso d'Italia TE 19 4773 28962
Colledara TE 20 2179 31141
Valle Castellana TE 20 977 32118

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km N of L'Aquila (69753 inhabitants)
24 Km W of Teramo (54892 inhabitants)
58 Km W of Montesilvano (53738 inhabitants)
64 Km W of Chieti (51815 inhabitants)
64 Km W of Pescara (121014 inhabitants)
65 Km E of Terni (111501 inhabitants)
74 Km SE of Foligno (57155 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
86 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 2021-05-26
08:52:19		 42.5632 13.4418 16 2021-05-26
09:00:02		 Sala Sismica INGV-Roma 90505951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-26 08:52:19 ± 0.1
Latitude 42.5632 ± 0.0036
Longitude 13.4418 ± 0.0049
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 90505951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 474
Semi-minor axis of confidence ellipse (meter) 180
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 205
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) 113
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34624
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 90505951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-26 09:00:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SPS2.HHZ. 2021-05-26T08:54:06.45 3.0 undecidable manual Sg 10.88 0
IV.CADC.EHZ. 2021-05-26T08:54:01.38 3.0 undecidable manual Sn 3.71 0
IV.BOZZ.HNZ. 2021-05-26T08:53:59.87 3.0 undecidable manual Sg 12.63 0
IV.NDIM.HNZ. 2021-05-26T08:53:54.83 3.0 undecidable manual Sg 16.360001 0
AC.VLO.HHZ. 2021-05-26T08:53:38.63 3.0 positive manual Pg 11.78 0
IV.QLNO.HHZ. 2021-05-26T08:53:35.74 3.0 negative manual Pg 17.969999 0
GU.IMI.HHZ. 2021-05-26T08:53:29.09 3.0 undecidable manual Pn 9.15 0
IV.ESCV.HHZ. 2021-05-26T08:53:29.37 3.0 negative manual Pn 3.78 0
IV.SELL.HHZ. 2021-05-26T08:53:24.40 3.0 negative manual Pg 7.3 0
IV.GIZZ.HHZ. 2021-05-26T08:53:23.17 3.0 negative manual Pg 8.37 0
IV.SENA.HHZ. 2021-05-26T08:53:23.79 3.0 undecidable manual Pg 13.66 0
MN.TRI.HHZ. 2021-05-26T08:53:17.74 3.0 positive manual Pg 13.34 0
IV.CELI.HHZ. 2021-05-26T08:53:15.60 3.0 undecidable manual Pn 3.98 0
IV.RIBO.EHZ.01 2021-05-26T08:53:09.33 3.0 undecidable manual Sn -0.09 0
TV.SF01.EHZ. 2021-05-26T08:53:00.60 3.0 undecidable manual Sn 0.97 0
IV.IMOL.HNZ. 2021-05-26T08:52:52.47 3.0 undecidable manual Pn 0.98 0
IV.BSSO.HHZ. 2021-05-26T08:52:50.74 3.0 undecidable manual Sn -1.23 0
IV.PE3.EHZ. 2021-05-26T08:52:39.58 3.0 undecidable manual Pn -0.22 0
IV.FDMO.HHZ. 2021-05-26T08:52:36.07 3.0 undecidable manual Sn -3.44 0
IV.LPEL.HHZ. 2021-05-26T08:52:29.19 3.0 positive manual P 0.78 0
IV.MTRA.EHZ. 2021-05-26T08:52:28.23 0.3 undecidable manual S 350 21.7671 113 -0.23 71
IV.RM33.EHZ. 2021-05-26T08:52:27.83 0.1 undecidable manual S 252 19.5693 116 -0.08 100
IV.NRCA.HHZ. 2021-05-26T08:52:27.38 3.0 negative manual Pn 0.55 0
IV.MMO1.EHZ. 2021-05-26T08:52:27.69 0.6 undecidable manual P 346 38.4282 100 0.35 46
IV.T1299.HNE. 2021-05-26T08:52:27.03 0.1 undecidable manual S 301 15.2736 125 0.1 99
IV.SMA1.EHZ. 2021-05-26T08:52:26.02 0.3 undecidable manual S 311 11.4774 135 -0.14 75
IV.GIGS.HHN. 2021-05-26T08:52:26.99 0.3 undecidable manual S 139 16.2726 123 -0.16 74
IV.TERO.HHZ. 2021-05-26T08:52:26.87 0.3 undecidable manual S 63 14.7741 126 0.04 76
IV.VVLD.HHZ. 2021-05-26T08:52:25.20 3.0 undecidable manual Pn -2.75 0
IV.GIGS.HHN. 2021-05-26T08:52:24.15 0.1 undecidable manual P 139 16.2726 123 0.05 100
IV.TERO.HHZ. 2021-05-26T08:52:24.04 0.6 undecidable manual P 63 14.7741 126 0.12 50
IV.T1299.HNE. 2021-05-26T08:52:24.04 0.3 undecidable manual P 301 15.2736 125 0.07 75
IV.MTRA.EHZ. 2021-05-26T08:52:24.77 0.3 undecidable manual P 350 21.7671 113 -0.09 73
IV.RM33.EHZ. 2021-05-26T08:52:24.49 0.1 undecidable manual P 252 19.5693 116 -0.05 100
IV.MF5.EHZ. 2021-05-26T08:52:24.62 3.0 undecidable manual Pn -2.72 0
IV.SMA1.EHZ. 2021-05-26T08:52:23.63 0.1 negative manual P 311 11.4774 135 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.2 0.00013550000000000001 0.22 AML other m 2021-05-26T08:52:26.36
IV.SMA1.EHE. ML:1.0 0.00009495 0.3 AML other m 2021-05-26T08:52:26.71
IV.RM33.EHE. ML:1.0 0.00006275 1.66 AML other m 2021-05-26T08:52:27.11
IV.RM33.EHN. ML:1.2 0.00011 0.58 AML other m 2021-05-26T08:52:28.01
IV.MTRA.EHE. ML:1.1 0.0000702 0.46 AML other m 2021-05-26T08:52:28.42
IV.MTRA.EHN. ML:0.9 0.0000445 0.28 AML other m 2021-05-26T08:52:28.80
IV.NRCA.HHE. ML:1.1 0.0000475 0.4 AML other m 2021-05-26T08:52:33.77
IV.NRCA.HHN. ML:1.2 0.000052699999999999993 0.12 AML other m 2021-05-26T08:52:34.14
IV.RM33.HNE. ML:2.1 0.000797 0.7 AML other m 2021-05-26T08:52:35.89
IV.RM33.HNN. ML:2.0 0.0006234999999999999 0.76 AML other m 2021-05-26T08:52:35.92
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