Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 26-08-2016 and time 07:05:22 (Italy) in region 2 km E Amatrice (RI)

A magnitude ML 1.3 earthquake occured in region: 2 km E Amatrice (RI), on

  • 26-08-2016 05:05:22 (UTC)
  • 26-08-2016 07:05:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6260, 13.3090 at 10 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
Amatrice RI 2 2657 2657
Campotosto AQ 9 542 3199
Accumoli RI 9 667 3866
Capitignano AQ 12 665 4531
Cittareale RI 12 482 5013
Montereale AQ 12 2581 7594
Cortino TE 16 656 8250
Arquata del Tronto AP 16 1178 9428
Crognaleto TE 17 1297 10725
Acquasanta Terme AP 18 2916 13641
Borbona RI 19 617 14258
Rocca Santa Maria TE 19 537 14795
Barete AQ 20 737 15532
Valle Castellana TE 20 977 16509
Cagnano Amiterno AQ 20 1369 17878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km N of L'Aquila (69753 inhabitants)
33 Km W of Teramo (54892 inhabitants)
55 Km E of Terni (111501 inhabitants)
62 Km SE of Foligno (57155 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
76 Km W of Pescara (121014 inhabitants)
77 Km W of Chieti (51815 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
92 Km SE of Perugia (166134 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 1.3 2016-08-26
05:05:22		 42.6265 13.309 10 2019-02-12
13:57:32		 Bollettino Sismico Italiano INGV 40669241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-08-26 05:05:22 ± 0.04
Latitude 42.6265 ± 0.0027
Longitude 13.3090 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 40669241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 300
Semi-minor axis of confidence ellipse (meter) 223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 211
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.04946
Epicentral distance of station farthest from the epicenter (degree) 0.40290
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 40669241
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-01-17 15:28:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARRO.EHZ. 2016-08-26T05:05:37.30 0.6 undecidable manual S 263 44.7219 50 -0.1 47
IV.MC2.EHZ. 2016-08-26T05:05:34.50 0.6 undecidable manual S 343 33.0447 50 0.19 47
IV.MMO1.HNZ. 2016-08-26T05:05:33.60 0.6 undecidable manual S 3 30.2475 50 0.04 48
IV.GIGS.HHZ. 2016-08-26T05:05:33.30 0.6 undecidable manual S 132 28.8489 50 0.11 48
IV.NRCA.HHZ. 2016-08-26T05:05:32.60 0.6 undecidable manual S 325 27.9498 50 -0.33 46
IV.T1212.EHZ. 2016-08-26T05:05:32.60 0.3 undecidable manual S 303 25.6521 50 0.28 70
IV.ARRO.EHZ. 2016-08-26T05:05:31.03 0.3 undecidable manual P 263 44.7219 50 -0.21 68
IV.TERO.HHZ. 2016-08-26T05:05:31.70 0.6 undecidable manual S 91 24.0537 113 -0.2 47
IV.LNSS.HHZ. 2016-08-26T05:05:31.40 0.6 undecidable manual S 263 22.0668 115 0.14 48
IV.MC2.EHZ. 2016-08-26T05:05:29.56 0.3 undecidable manual P 343 33.0447 50 0.11 71
IV.RM33.EHZ. 2016-08-26T05:05:29.40 0.6 undecidable manual S 211 15.1737 124 0.24 48
IV.T1218.HNZ. 2016-08-26T05:05:29.40 0.3 undecidable manual S 287 16.5723 122 -0.16 73
IV.T1214.HNZ. 2016-08-26T05:05:29.70 0.1 undecidable manual S 331 16.872 121 0.04 99
IV.NRCA.HHZ. 2016-08-26T05:05:28.47 0.1 undecidable manual P 325 27.9498 50 -0.19 94
IV.T1241.HNZ. 2016-08-26T05:05:28.71 0.6 undecidable manual P 21 27.3504 50 0.14 48
IV.TERO.HHZ. 2016-08-26T05:05:28.01 0.1 undecidable manual P 91 24.0537 113 -0.05 98
IV.T1242.HNZ. 2016-08-26T05:05:28.24 0.3 undecidable manual P 339 24.0537 113 0.19 71
IV.T1243.HHZ. 2016-08-26T05:05:28.70 0.6 undecidable manual S 56 13.7751 127 -0.07 50
IV.GIGS.HHZ. 2016-08-26T05:05:28.63 0.3 undecidable manual P 132 28.8489 50 -0.18 71
IV.T1212.EHZ. 2016-08-26T05:05:28.01 0.3 undecidable manual P 303 25.6521 50 -0.29 70
IV.T1202.EHZ. 2016-08-26T05:05:28.20 0.1 undecidable manual S 321 10.9779 133 0.18 97
IV.MMO1.HNZ. 2016-08-26T05:05:28.97 0.6 undecidable manual P 3 30.2475 50 -0.05 48
IV.CAMP.HHZ. 2016-08-26T05:05:28.40 0.6 undecidable manual S 141 12.9759 128 -0.15 49
IV.LNSS.HHZ. 2016-08-26T05:05:27.68 0.3 undecidable manual P 263 22.0668 115 -0.02 74
IV.T1214.HNZ. 2016-08-26T05:05:26.94 0.3 undecidable manual P 331 16.872 121 0.17 72
IV.RM33.EHZ. 2016-08-26T05:05:26.76 0.3 undecidable manual P 211 15.1737 124 0.28 71
IV.T1218.HNZ. 2016-08-26T05:05:26.55 0.1 undecidable manual P 287 16.5723 122 -0.16 97
IV.T1243.HHZ. 2016-08-26T05:05:26.46 0.3 undecidable manual P 56 13.7751 127 0.21 72
IV.CAMP.HHZ. 2016-08-26T05:05:26.21 0.1 undecidable manual P 141 12.9759 128 0.08 99
IV.T1201.HNZ. 2016-08-26T05:05:26.50 0.1 undecidable manual S 306 5.8941 150 -0.4 94
IV.T1202.EHZ. 2016-08-26T05:05:26.11 0.1 undecidable manual P 321 10.9779 133 0.29 95
IV.T1213.HNZ. 2016-08-26T05:05:26.95 0.1 undecidable manual P 306 18.4704 119 -0.11 98
IV.T1204.EHZ. 2016-08-26T05:05:26.64 0.1 undecidable manual S 7 5.4945 152 -0.2 98
IV.T1204.EHZ. 2016-08-26T05:05:25.33 0.3 undecidable manual P 7 5.4945 152 0.19 74
IV.T1201.HNZ. 2016-08-26T05:05:25.27 0.1 undecidable manual P 306 5.8941 150 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1243.HNN. ML:1.7 0.00049490215 0.16 AML other m 2016-08-26T05:05:29.63
IV.T1243.HHN. ML:1.6 0.00042597925 0.1024 AML other m 2016-08-26T05:05:29.78
IV.T1243.HHE. ML:1.6 0.00039013484999999995 0.16 AML other m 2016-08-26T05:05:29.96
IV.T1243.HNE. ML:1.6 0.00039950094999999995 0.16 AML other m 2016-08-26T05:05:30.04
IV.RM33.HNN. ML:1.1 0.00011211042 0.3008 AML other m 2016-08-26T05:05:31.43
IV.RM33.EHN. ML:1.0 0.00008398665 0.3008 AML other m 2016-08-26T05:05:31.58
IV.LNSS.HHE. ML:1.2 0.00011731632000000001 0.3392 AML other m 2016-08-26T05:05:31.86
IV.TERO.HHN. ML:1.5 0.0001841376 0.1408 AML other m 2016-08-26T05:05:32.04
IV.TERO.HNN. ML:1.4 0.00015396285 0.1408 AML other m 2016-08-26T05:05:31.97
IV.TERO.HHE. ML:1.2 0.000102584395 0.0576 AML other m 2016-08-26T05:05:32.47
IV.LNSS.HHN. ML:1.2 0.000113521905 0.1024 AML other m 2016-08-26T05:05:32.68
IV.RM33.EHE. ML:0.9 0.000076391535 0.2176 AML other m 2016-08-26T05:05:32.74
IV.TERO.HNE. ML:1.2 0.00008926025000000001 0.0992 AML other m 2016-08-26T05:05:32.96
IV.NRCA.HNN. ML:1.7 0.00028654877000000004 0.1088 AML other m 2016-08-26T05:05:33.47
IV.RM33.HNE. ML:1.1 0.00010803676500000001 0.64 AML other m 2016-08-26T05:05:35.27
IV.ARRO.EHN. ML:0.8 0.000021287084999999997 0.1216 AML other m 2016-08-26T05:05:39.00
IV.ARRO.EHE. ML:0.8 0.000021800002 0.1792 AML other m 2016-08-26T05:05:40.31
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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