Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 12-08-2020 and time 00:08:26 (Italy) in region 4 km S Crognaleto (TE)

A magnitude ML 1.8 earthquake occured in region: 4 km S Crognaleto (TE), on

  • 11-08-2020 22:08:26 (UTC)
  • 12-08-2020 00:08:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5170, 13.4920 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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
Pietracamela TE 5 271 1568
Fano Adriano TE 5 296 1864
Campotosto AQ 11 542 2406
Cortino TE 12 656 3062
Tossicia TE 13 1406 4468
Montorio al Vomano TE 14 8218 12686
Isola del Gran Sasso d'Italia TE 14 4773 17459
Colledara TE 16 2179 19638
Capitignano AQ 16 665 20303
Pizzoli AQ 18 4326 24629
Castelli TE 18 1159 25788
Barete AQ 19 737 26525
Castel Castagna TE 19 500 27025
Rocca Santa Maria TE 19 537 27562
L'Aquila AQ 20 69753 97315

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NE of L'Aquila (69753 inhabitants)
24 Km SW of Teramo (54892 inhabitants)
54 Km W of Montesilvano (53738 inhabitants)
59 Km W of Chieti (51815 inhabitants)
60 Km W of Pescara (121014 inhabitants)
69 Km E of Terni (111501 inhabitants)
81 Km SE of Foligno (57155 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
85 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 1.8 2020-08-11
22:08:26		 42.5173 13.4917 11 2020-11-19
12:36:59		 Bollettino Sismico Italiano INGV 82527181
Reviewed
Rev100 		ML 1.8 2020-08-11
22:08:26		 42.5143 13.4925 11 2020-08-11
22:19:00		 Sala Sismica INGV-Roma 81889561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-11 22:08:26 ± 0.07
Latitude 42.5173 ± 0.0027
Longitude 13.4917 ± 0.0061
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82527181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 431
Semi-minor axis of confidence ellipse (meter) 327
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 83
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 45
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.08813
Epicentral distance of station farthest from the epicenter (degree) 0.94339
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 81889561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-11 22:19:00

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 37
Type of magnitude ML
Reference to an origin 82527181
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-10 10:45:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.INTR.HHZ. 2020-08-11T22:08:45.90 0.3 undecidable manual S 149 65.5899 50 -0.21 66
IV.GUMA.HHZ. 2020-08-11T22:08:45.62 0.3 undecidable manual S 348 61.7937 50 0.51 62
IV.ARRO.EHZ. 2020-08-11T22:08:44.85 0.3 undecidable manual S 277 59.6958 50 0.3 66
IV.MF5.EHZ. 2020-08-11T22:08:43.39 0.3 undecidable manual S 357 52.2033 50 0.84 55
IV.FOSV.EHZ. 2020-08-11T22:08:43.75 0.1 undecidable manual P 326 104.7174 50 0.07 84
IV.ATCC.EHZ. 2020-08-11T22:08:43.37 0.1 undecidable manual P 317 101.4207 50 0.19 83
IV.GAVE.EHZ. 2020-08-11T22:08:42.77 0.3 undecidable manual S 292 52.503 50 0.15 69
IV.EL6.EHZ. 2020-08-11T22:08:42.16 0.1 undecidable manual P 341 95.4378 50 -0.11 85
IV.NRCA.HHZ. 2020-08-11T22:08:41.20 0.3 undecidable manual S 319 46.62 50 0.14 70
IV.ASSB.HHZ. 2020-08-11T22:08:41.49 0.3 undecidable manual P 311 89.4438 50 0.16 64
IV.MOMA.HHZ. 2020-08-11T22:08:40.16 0.1 undecidable manual P 293 81.6516 50 0.03 89
IV.MMO1.EHZ. 2020-08-11T22:08:40.60 0.3 undecidable manual S 342 44.4222 50 0.13 70
IV.LNSS.HHZ. 2020-08-11T22:08:39.03 0.6 undecidable manual S 285 38.0286 50 0.26 46
IV.CESX.HHZ. 2020-08-11T22:08:38.82 0.1 undecidable manual P 278 74.6697 50 -0.23 87
IV.MNTT.EHZ. 2020-08-11T22:08:37.17 0.1 undecidable manual P 8 60.9945 50 0.22 89
IV.VCEL.EHZ. 2020-08-11T22:08:37.28 0.6 undecidable manual S 115 31.6461 50 0.23 47
IV.CSP1.EHZ. 2020-08-11T22:08:37.55 0.3 undecidable manual P 340 67.8765 50 -0.46 63
IV.INTR.HHZ. 2020-08-11T22:08:37.48 0.1 undecidable manual P 149 65.5899 50 -0.18 89
IV.FDMO.HHZ. 2020-08-11T22:08:37.43 0.1 undecidable manual P 330 66.2781 50 -0.34 86
IV.GUMA.HHZ. 2020-08-11T22:08:37.04 0.1 undecidable manual P 348 61.7937 50 -0.04 92
IV.ARRO.EHZ. 2020-08-11T22:08:36.38 0.1 undecidable manual P 277 59.6958 50 -0.37 86
IV.MF5.EHZ. 2020-08-11T22:08:35.42 0.1 undecidable manual P 357 52.2033 50 -0.18 91
IV.OFFI.HHZ. 2020-08-11T22:08:35.51 0.3 undecidable manual P 19 48.9177 50 0.41 65
IV.GAVE.EHZ. 2020-08-11T22:08:35.24 0.1 undecidable manual P 292 52.503 50 -0.4 87
IV.MTRA.EHZ. 2020-08-11T22:08:35.63 0.6 undecidable manual S 344 27.6501 50 -0.36 46
IV.PTQR.HHZ. 2020-08-11T22:08:35.79 0.3 undecidable manual P 188 55.5 50 -0.31 66
IV.MC2.EHZ. 2020-08-11T22:08:35.31 0.1 undecidable manual P 331 50.2164 50 0.03 94
IV.RM33.EHZ. 2020-08-11T22:08:34.93 0.6 undecidable manual S 268 22.6551 50 0.27 47
IV.MMO1.EHZ. 2020-08-11T22:08:34.04 0.1 undecidable manual P 342 44.4222 50 -0.36 89
IV.NRCA.HHZ. 2020-08-11T22:08:34.30 0.1 undecidable manual P 319 46.62 50 -0.44 87
IV.T1299.HNZ. 2020-08-11T22:08:34.72 0.3 undecidable manual S 307 21.4674 50 0.38 69
MN.AQU.HNZ. 2020-08-11T22:08:34.31 0.1 undecidable manual S 201 19.4694 50 0.51 90
IV.SMA1.EHZ. 2020-08-11T22:08:33.40 0.3 undecidable manual S 315 17.871 121 0.03 75
IV.FIAM.HHZ. 2020-08-11T22:08:33.76 0.1 undecidable manual P 228 41.3253 50 -0.16 93
IV.LNSS.HHZ. 2020-08-11T22:08:33.22 0.1 positive manual P 285 38.0286 50 -0.2 93
IV.TERO.HHZ. 2020-08-11T22:08:32.49 0.3 undecidable manual S 38 14.874 126 0.01 76
IV.VCEL.EHZ. 2020-08-11T22:08:32.21 0.1 positive manual P 115 31.6461 50 -0.22 94
IV.RM33.EHZ. 2020-08-11T22:08:31.05 0.1 positive manual P 268 22.6551 50 0 100
IV.T1299.HNZ. 2020-08-11T22:08:31.00 0.1 undecidable manual P 307 21.4674 50 0.14 97
IV.MTRA.EHZ. 2020-08-11T22:08:31.44 0.1 positive manual P 344 27.6501 50 -0.37 92
IV.GIGS.HHZ. 2020-08-11T22:08:31.66 0.3 undecidable manual S 137 9.7791 138 0.5 69
MN.AQU.HNZ. 2020-08-11T22:08:30.57 0.1 undecidable manual P 201 19.4694 50 0.02 100
IV.SMA1.EHZ. 2020-08-11T22:08:30.37 0.1 negative manual P 315 17.871 121 0.07 99
IV.GIGS.HHZ. 2020-08-11T22:08:29.27 0.1 undecidable manual P 137 9.7791 138 0.25 97
IV.TERO.HHZ. 2020-08-11T22:08:29.74 0.1 undecidable manual P 38 14.874 126 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HNE. ML:2.6 0.00418 0.28 AML other m 2020-08-11T22:08:32.78
IV.TERO.HHN. ML:2.4 0.0026799999999999997 0.2 AML other m 2020-08-11T22:08:32.83
IV.TERO.HNN. ML:2.4 0.002585 0.2 AML other m 2020-08-11T22:08:32.83
IV.RM33.EHN. ML:1.8 0.000406 0.88 AML other m 2020-08-11T22:08:35.51
IV.RM33.HNN. ML:1.8 0.00041349999999999997 0.18 AML other m 2020-08-11T22:08:35.41
IV.MTRA.EHE. ML:2.0 0.00047999999999999996 1.5 AML other m 2020-08-11T22:08:35.11
IV.RM33.HNE. ML:1.9 0.0005235 0.88 AML other m 2020-08-11T22:08:35.96
IV.RM33.EHE. ML:1.9 0.000498 0.88 AML other m 2020-08-11T22:08:35.53
IV.MTRA.EHN. ML:1.8 0.00035450000000000005 1.06 AML other m 2020-08-11T22:08:36.12
IV.VCEL.EHN. ML:2.0 0.0004425 0.22 AML other m 2020-08-11T22:08:38.15
IV.VCEL.EHE. ML:2.0 0.000428 0.72 AML other m 2020-08-11T22:08:39.44
IV.LNSS.HHN. ML:2.1 0.0005385 0.14 AML other m 2020-08-11T22:08:39.61
IV.LNSS.HHE. ML:2.3 0.000762 0.12 AML other m 2020-08-11T22:08:39.88
IV.NRCA.HHN. ML:1.9 0.000244 0.12 AML other m 2020-08-11T22:08:42.58
IV.NRCA.HHE. ML:2.0 0.0002585 1.56 AML other m 2020-08-11T22:08:43.94
IV.MF5.EHE. ML:1.4 0.00006723394 0.2688 AML other m 2020-08-11T22:08:43.75
IV.GAVE.EHE. ML:2.0 0.0002275 1.02 AML other m 2020-08-11T22:08:43.39
IV.GAVE.EHN. ML:1.9 0.000194 0.18 AML other m 2020-08-11T22:08:45.15
IV.ARRO.EHN. ML:1.6 0.00008785000000000001 0.26 AML other m 2020-08-11T22:08:45.75
IV.INTR.HHN. ML:1.1 0.000024679034999999998 0.7424 AML other m 2020-08-11T22:08:46.67
IV.GUMA.HHE. ML:2.0 0.00020050000000000002 0.24 AML other m 2020-08-11T22:08:46.48
IV.GUMA.HHN. ML:2.1 0.000254 0.7 AML other m 2020-08-11T22:08:46.84
IV.INTR.HHE. ML:1.3 0.00004145 0.66 AML other m 2020-08-11T22:08:47.13
IV.ARRO.EHE. ML:1.6 0.00008155 0.2 AML other m 2020-08-11T22:08:47.25
IV.MF5.EHN. ML:1.4 0.000063218125 0.4608 AML other m 2020-08-11T22:08:47.98
IV.FDMO.HHE. ML:1.5 0.0000551 1.18 AML other m 2020-08-11T22:08:48.68
IV.FDMO.HHN. ML:1.6 0.0000819 1.06 AML other m 2020-08-11T22:08:48.74
IV.CESX.HHE. ML:1.2 0.000025321255 0.2688 AML other m 2020-08-11T22:08:49.36
IV.MNTT.EHN. ML:1.9 0.00016499999999999997 0.32 AML other m 2020-08-11T22:08:49.34
IV.MOMA.HHE. ML:1.9 0.00011499999999999999 0.22 AML other m 2020-08-11T22:08:52.16
IV.MOMA.HHN. ML:1.9 0.000116 0.2 AML other m 2020-08-11T22:08:52.26
IV.MNTT.EHE. ML:1.9 0.00016299999999999998 0.56 AML other m 2020-08-11T22:08:53.49
IV.ASSB.HHE. ML:1.5 0.000037199999999999996 0.82 AML other m 2020-08-11T22:08:57.47
IV.ASSB.HHN. ML:1.5 0.00003460000000000001 0.36 AML other m 2020-08-11T22:08:58.05
IV.FOSV.EHN. ML:1.4 0.0000226 0.3 AML other m 2020-08-11T22:08:59.77
IV.ATCC.EHN. ML:1.5 0.0000291 0.72 AML other m 2020-08-11T22:09:00.67
IV.ATCC.EHE. ML:1.4 0.0000246 1.72 AML other m 2020-08-11T22:09:02.05
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