Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 25-07-2021 and time 11:32:22 (Italy) in region 2 km N Cortino (TE)

A magnitude ML 1.2 earthquake occured in region: 2 km N Cortino (TE), on

  • 25-07-2021 09:32:22 (UTC)
  • 25-07-2021 11:32:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6430, 13.5160 at 11 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Cortino TE 2 656 656
Rocca Santa Maria TE 5 537 1193
Fano Adriano TE 10 296 1489
Valle Castellana TE 10 977 2466
Crognaleto TE 11 1297 3763
Torricella Sicura TE 12 2641 6404
Montorio al Vomano TE 12 8218 14622
Pietracamela TE 14 271 14893
Campotosto AQ 15 542 15435
Tossicia TE 15 1406 16841
Teramo TE 16 54892 71733
Acquasanta Terme AP 17 2916 74649
Campli TE 17 7209 81858
Colledara TE 18 2179 84037
Amatrice RI 19 2657 86694
Civitella del Tronto TE 19 5116 91810
Basciano TE 19 2434 94244
Isola del Gran Sasso d'Italia TE 20 4773 99017
Castel Castagna TE 20 500 99517

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km W of Teramo (54892 inhabitants)
34 Km N of L'Aquila (69753 inhabitants)
54 Km W of Montesilvano (53738 inhabitants)
61 Km W of Pescara (121014 inhabitants)
63 Km NW of Chieti (51815 inhabitants)
72 Km E of Terni (111501 inhabitants)
75 Km E of Foligno (57155 inhabitants)
96 Km NE of Tivoli (56533 inhabitants)
97 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
Bulletin
Rev1000 		ML 1.2 2021-07-25
09:32:22		 42.6433 13.5162 11 2021-12-29
11:12:16		 Bollettino Sismico Italiano INGV 93349011
Reviewed
Rev100 		ML 1.2 2021-07-25
09:32:22		 42.6392 13.5018 10 2021-07-25
09:40:17		 Sala Sismica INGV-Roma 93190731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-25 09:32:22 ± 0.07
Latitude 42.6433 ± 0.0036
Longitude 13.5162 ± 0.0061
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 93349011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 482
Semi-minor axis of confidence ellipse (meter) 435
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 91
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 23
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.50272
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 93190731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-25 09:40:17

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 93349011
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-10 15:50:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
AC.KBN.HHZ. 2021-07-25T09:34:15.60 3.0 undecidable manual Pg 24.4 0
IV.HVIT.HHZ. 2021-07-25T09:34:06.34 3.0 undecidable manual Pg 17.98 0
IV.CADC.HNZ. 2021-07-25T09:34:00.06 3.0 undecidable manual Sn -0.63 0
GU.RRL.HHZ. 2021-07-25T09:33:58.88 3.0 undecidable manual Pg 18.51 0
IV.MTGR.HHZ. 2021-07-25T09:33:51.37 3.0 undecidable manual Pg 16.17 0
IV.SCIAC.HHZ. 2021-07-25T09:33:49.90 3.0 negative manual Pg 9.75 0
GU.MGRO.HHZ. 2021-07-25T09:33:41.91 3.0 undecidable manual Pg 15.07 0
IV.ZCCA.HHZ. 2021-07-25T09:33:31.52 3.0 undecidable manual Sn 0.56 0
IV.SPS2.HHZ. 2021-07-25T09:33:30.31 3.0 positive manual Pn 4.84 0
CH.BERNI.HHZ. 2021-07-25T09:33:29.80 3.0 undecidable manual Pn 0.76 0
IV.CADC.EHZ. 2021-07-25T09:33:27.64 3.0 negative manual Pg 9.71 0
SL.LJU.BHZ. 2021-07-25T09:33:26.42 3.0 undecidable manual Pg 10.16 0
IV.PAOL.HHZ. 2021-07-25T09:33:19.51 3.0 undecidable manual Sn -1.04 0
IV.RNI2.HHZ. 2021-07-25T09:33:00.71 3.0 undecidable manual S -1.83 0
IV.MCIV.CHZ. 2021-07-25T09:32:47.60 3.0 negative manual P 2.27 0
IV.ATVO.HHZ. 2021-07-25T09:32:40.30 3.0 undecidable manual P -1.27 0
IV.CSP1.EHZ. 2021-07-25T09:32:40.42 0.6 undecidable manual S 333 55.7997 50 0.36 43
IV.MF5.EHE. 2021-07-25T09:32:36.09 0.6 undecidable manual S 353 38.5281 50 0.66 41
IV.MC2.EHZ. 2021-07-25T09:32:35.99 0.6 undecidable manual S 318 39.9267 50 0.17 46
IV.NRCA.HHZ. 2021-07-25T09:32:35.42 0.6 undecidable manual S 303 38.9277 50 -0.14 47
IV.CSP1.EHZ. 2021-07-25T09:32:32.40 0.1 undecidable manual P 333 55.7997 50 -0.3 87
IV.RM33.EHZ. 2021-07-25T09:32:32.95 0.3 undecidable manual S 239 28.749 50 0.11 72
IV.GIGS.HHN. 2021-07-25T09:32:30.65 0.6 undecidable manual S 168 21.5673 50 -0.27 47
IV.MC2.EHZ. 2021-07-25T09:32:30.02 0.1 undecidable manual P 318 39.9267 50 -0.23 91
IV.MF5.EHE. 2021-07-25T09:32:30.00 0.3 undecidable manual P 353 38.5281 50 -0.03 72
IV.T1299.HNN. 2021-07-25T09:32:30.56 0.6 undecidable manual S 267 19.1697 50 0.3 47
IV.OFFI.HHN. 2021-07-25T09:32:29.88 0.1 undecidable manual P 23 35.1426 50 0.36 89
IV.NRCA.HHZ. 2021-07-25T09:32:29.76 0.1 undecidable manual P 303 38.9277 50 -0.34 89
IV.CAMP.HHZ. 2021-07-25T09:32:29.31 0.6 undecidable manual S 216 14.7741 126 0.31 47
IV.SMA1.EHN. 2021-07-25T09:32:29.20 0.6 undecidable manual S 265 14.874 126 0.19 48
IV.RM33.EHZ. 2021-07-25T09:32:28.47 0.1 undecidable manual P 239 28.749 50 -0.06 96
IV.MTRA.EHZ. 2021-07-25T09:32:28.90 0.6 undecidable manual S 322 15.873 124 -0.42 46
IV.T1299.HNN. 2021-07-25T09:32:27.19 0.1 undecidable manual P 267 19.1697 50 0.15 96
IV.TERO.HNZ. 2021-07-25T09:32:27.27 0.1 undecidable manual S 108 7.4814 145 0.06 100
IV.GIGS.HHN. 2021-07-25T09:32:27.14 0.1 positive manual P 168 21.5673 50 -0.28 93
IV.MTRA.EHZ. 2021-07-25T09:32:26.22 0.1 undecidable manual P 322 15.873 124 -0.28 94
IV.CAMP.HHZ. 2021-07-25T09:32:26.48 0.3 undecidable manual P 216 14.7741 126 0.17 72
IV.SMA1.EHN. 2021-07-25T09:32:26.37 0.3 undecidable manual P 265 14.874 126 0.05 74
IV.TERO.HNZ. 2021-07-25T09:32:25.38 0.1 undecidable manual P 108 7.4814 145 0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHN. ML:1.5 0.000257 0.34 AML other m 2021-07-25T09:32:29.18
IV.MTRA.EHE. ML:1.3 0.00016199999999999998 1.16 AML other m 2021-07-25T09:32:29.12
IV.RM33.EHN. ML:1.0 0.0000528 1.12 AML other m 2021-07-25T09:32:33.41
IV.RM33.EHE. ML:1.0 0.0000446 0.42 AML other m 2021-07-25T09:32:34.98
IV.NRCA.HHE. ML:1.3 0.0000639 0.8 AML other m 2021-07-25T09:32:35.30
IV.NRCA.HHN. ML:1.2 0.00006225 0.12 AML other m 2021-07-25T09:32:38.22
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