Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 24-08-2016 and time 08:44:51 (Italy) in region 8 km E Norcia (PG)

A magnitude ML 2.0 earthquake occured in region: 8 km E Norcia (PG), on

  • 24-08-2016 06:44:51 (UTC)
  • 24-08-2016 08:44:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7840, 13.1890 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
Norcia PG 8 4957 4957
Arquata del Tronto AP 9 1178 6135
Accumoli RI 11 667 6802
Castelsantangelo sul Nera MC 13 281 7083
Montegallo AP 14 523 7606
Cascia PG 16 3217 10823
Preci PG 16 724 11547
Montemonaco AP 17 604 12151
Acquasanta Terme AP 18 2916 15067
Ussita MC 18 444 15511
Visso MC 18 1107 16618
Cittareale RI 19 482 17100
Amatrice RI 19 2657 19757

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
44 Km W of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
51 Km NW of L'Aquila (69753 inhabitants)
74 Km E of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
91 Km W of Pescara (121014 inhabitants)
94 Km NW of Chieti (51815 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
97 Km S of Ancona (100861 inhabitants)
97 Km NE of Tivoli (56533 inhabitants)
98 Km E of Viterbo (67173 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 2.0 2016-08-24
06:44:51		 42.7838 13.1893 10 2016-10-06
10:12:09		 Bollettino Sismico Italiano INGV 29560531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-08-24 06:44:51 ± 0.14
Latitude 42.7838 ± 0.0072
Longitude 13.1893 ± 0.0110
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 29560531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1048
Semi-minor axis of confidence ellipse (meter) 321
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 231
Circular confidence region, given by single value of horizontal uncertainty (meter) 1050.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
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) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.07464
Epicentral distance of station farthest from the epicenter (degree) 0.70237
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 29560531
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-09-26 16:18:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T0110.HHZ. 2016-08-24T06:45:15.83 0.6 undecidable manual S 142 77.9664 50 0.77 37
IV.VCEL.EHZ. 2016-08-24T06:45:13.26 1.0 undecidable manual S 129 68.4759 50 0.73 19
IV.SNTG.HHZ. 2016-08-24T06:45:09.56 0.3 undecidable manual S 339 55.9995 50 0.36 66
IV.ASSB.HHZ. 2016-08-24T06:45:08.20 0.3 undecidable manual S 304 51.8037 50 0.13 69
IV.OFFI.HHZ. 2016-08-24T06:45:07.68 0.3 undecidable manual S 67 43.7229 50 1.77 34
IV.GIGS.HHZ. 2016-08-24T06:45:06.68 0.3 undecidable manual S 139 48.2184 50 -0.43 66
IV.ARRO.EHZ. 2016-08-24T06:45:05.58 0.6 undecidable manual S 237 41.3253 50 0.3 46
IV.T0110.HHZ. 2016-08-24T06:45:04.95 0.3 undecidable manual P 142 77.9664 50 -0.13 66
IV.TERO.HHZ. 2016-08-24T06:45:03.69 0.3 undecidable manual S 118 38.2284 50 -0.75 60
IV.CSP1.EHZ. 2016-08-24T06:45:03.25 0.3 undecidable manual S 2 34.2435 50 -0.12 72
IV.VCEL.EHZ. 2016-08-24T06:45:03.52 0.6 undecidable manual P 129 68.4759 50 -0.1 45
IV.CESI.HHZ. 2016-08-24T06:45:02.79 0.3 undecidable manual S 317 33.744 50 -0.45 67
IV.FDMO.HHZ. 2016-08-24T06:45:01.57 0.3 undecidable manual S 344 29.2485 50 -0.47 67
IV.ASSB.HHZ. 2016-08-24T06:45:01.06 0.1 undecidable manual P 304 51.8037 50 0.02 95
IV.SNTG.HHZ. 2016-08-24T06:45:01.64 0.3 undecidable manual P 339 55.9995 50 -0.05 70
IV.OFFI.HHZ. 2016-08-24T06:45:00.39 0.3 undecidable manual P 67 43.7229 50 0.6 63
IV.ARRO.EHZ. 2016-08-24T06:45:00.06 0.3 undecidable manual P 237 41.3253 50 0.63 62
IV.GIGS.HHZ. 2016-08-24T06:45:00.29 0.1 undecidable manual P 139 48.2184 50 -0.2 92
IV.CESI.HHZ. 2016-08-24T06:44:58.27 0.1 undecidable manual P 317 33.744 50 0.01 98
IV.TERO.HHZ. 2016-08-24T06:44:58.54 0.1 positive manual P 118 38.2284 50 -0.41 90
IV.CSP1.EHZ. 2016-08-24T06:44:58.25 0.3 undecidable manual P 2 34.2435 50 -0.08 73
IV.FDMO.HHZ. 2016-08-24T06:44:57.38 0.3 undecidable manual P 344 29.2485 50 -0.18 72
IV.NRCA.HNZ. 2016-08-24T06:44:55.68 0.1 undecidable manual S 312 8.2806 139 -0.13 100
IV.NRCA.HNZ. 2016-08-24T06:44:54.17 0.1 positive manual P 312 8.2806 139 0.2 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:1.8 0.0002093 0.2016 AML other m 2016-08-24T06:45:06.18
IV.ARRO.EHN. ML:1.7 0.00017338675 0.2176 AML other m 2016-08-24T06:45:07.31
IV.ASSB.HHE. ML:2.4 0.0006755 0.5 AML other m 2016-08-24T06:45:28.12
IV.ASSB.HHN. ML:2.5 0.0008505 0.26 AML other m 2016-08-24T06:45:29.53
IV.CESI.HHE. ML:2.1 0.0005282249999999999 0.1984 AML other m 2016-08-24T06:45:03.61
IV.CESI.HHN. ML:2.4 0.001242045 0.3008 AML other m 2016-08-24T06:45:03.74
IV.CSP1.EHN. ML:1.9 0.00032261810000000003 0.2784 AML other m 2016-08-24T06:45:03.96
IV.CSP1.EHE. ML:1.8 0.000297468 0.2368 AML other m 2016-08-24T06:45:05.36
IV.FDMO.HHN. ML:1.9 0.000395216 0.2208 AML other m 2016-08-24T06:45:02.29
IV.FDMO.HHE. ML:1.7 0.0002627104 0.5184 AML other m 2016-08-24T06:45:02.33
IV.GIGS.HHE. ML:1.8 0.000156 1.1 AML other m 2016-08-24T06:45:41.04
IV.GIGS.HHN. ML:1.7 0.000144 1.48 AML other m 2016-08-24T06:45:42.16
IV.OFFI.HHE. ML:2.7 0.00172 0.44 AML other m 2016-08-24T06:45:44.03
IV.OFFI.HHN. ML:2.7 0.0016799999999999999 0.46 AML other m 2016-08-24T06:45:45.87
IV.TERO.HHE. ML:2.0 0.00040091370000000005 0.1184 AML other m 2016-08-24T06:45:04.30
IV.TERO.HHN. ML:2.2 0.0006107679 0.08 AML other m 2016-08-24T06:45:04.26
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