Earthquake with magnitude of Md 1.1 on date 07-09-2016 and time 10:20:18 (Italy) in region 3 km E Amatrice (RI)

A magnitude Md 1.1 earthquake occured in region: 3 km E Amatrice (RI), on

  • 07-09-2016 08:20:18 (UTC)
  • 07-09-2016 10:20:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6270, 13.3220 at 1 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.

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 3 2657 2657
Campotosto AQ 9 542 3199
Accumoli RI 10 667 3866
Capitignano AQ 12 665 4531
Montereale AQ 13 2581 7112
Cittareale RI 13 482 7594
Cortino TE 15 656 8250
Crognaleto TE 16 1297 9547
Arquata del Tronto AP 17 1178 10725
Acquasanta Terme AP 18 2916 13641
Rocca Santa Maria TE 18 537 14178
Valle Castellana TE 19 977 15155
Fano Adriano TE 20 296 15451
Barete AQ 20 737 16188
Borbona RI 20 617 16805

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km N of L'Aquila (69753 inhabitants)
32 Km W of Teramo (54892 inhabitants)
56 Km E of Terni (111501 inhabitants)
62 Km SE of Foligno (57155 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
75 Km W of Pescara (121014 inhabitants)
76 Km W of Chieti (51815 inhabitants)
85 Km NE of Guidonia Montecelio (88673 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
93 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
Reviewed
Rev100
Md 1.1 2016-09-07
08:20:18
42.6267 13.3218 1 2016-09-07
08:39:57
Sala Sismica INGV-Roma 28469811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-09-07 08:20:18 ± 0.22
Latitude 42.6267 ± 0.0117
Longitude 13.3218 ± 0.0073
Depth (km) 1 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 28469811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1357
Semi-minor axis of confidence ellipse (meter) 440
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 199
Circular confidence region, given by single value of horizontal uncertainty (meter) 1360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 226
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.10522
Epicentral distance of station farthest from the epicenter (degree) 0.20774
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:1.1

Field Value
Value 1.1
Uncertainty 0.6
Num. used stations 3
Type of magnitude Md
Reference to an origin 28469811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-09-07 08:39:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2016-09-07T08:20:25.84 0.3 undecidable manual S 91 23.0547 92 -0.16 73
IV.T1243.HHZ. 2016-09-07T08:20:22.59 0.3 undecidable manual S 53 12.876 94 0.09 75
IV.TERO.HHZ. 2016-09-07T08:20:22.59 0.1 undecidable manual P 91 23.0547 92 -0.03 100
IV.T1202.EHZ. 2016-09-07T08:20:21.87 0.3 undecidable manual S 317 11.6772 95 -0.18 74
IV.T1244.EHZ. 2016-09-07T08:20:20.77 0.1 undecidable manual P 352 14.5743 94 -0.16 99
IV.T1243.HHZ. 2016-09-07T08:20:20.73 0.1 undecidable manual P 53 12.876 94 0.13 100
IV.T1202.EHZ. 2016-09-07T08:20:20.58 0.1 undecidable manual P 317 11.6772 95 0.24 98
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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