Earthquake with magnitude of ML 1.0 on date 12-08-2020 and time 11:40:12 (Italy) in region 5 km E Amatrice (RI)

A magnitude ML 1.0 earthquake occured in region: 5 km E Amatrice (RI), on

  • 12-08-2020 09:40:12 (UTC)
  • 12-08-2020 11:40:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6440, 13.3420 at 15 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 5 2657 2657
Accumoli RI 10 667 3324
Campotosto AQ 10 542 3866
Cortino TE 14 656 4522
Capitignano AQ 14 665 5187
Arquata del Tronto AP 15 1178 6365
Cittareale RI 15 482 6847
Acquasanta Terme AP 15 2916 9763
Montereale AQ 15 2581 12344
Crognaleto TE 16 1297 13641
Rocca Santa Maria TE 16 537 14178
Valle Castellana TE 16 977 15155
Fano Adriano TE 19 296 15451

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km W of Teramo (54892 inhabitants)
33 Km N of L'Aquila (69753 inhabitants)
58 Km E of Terni (111501 inhabitants)
63 Km SE of Foligno (57155 inhabitants)
68 Km W of Montesilvano (53738 inhabitants)
74 Km W of Pescara (121014 inhabitants)
75 Km W of Chieti (51815 inhabitants)
88 Km NE of Guidonia Montecelio (88673 inhabitants)
88 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
ML 1.0 2020-08-12
09:40:12
42.644 13.3422 15 2020-08-12
09:49:10
Sala Sismica INGV-Roma 81902421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-12 09:40:12 ± 0.08
Latitude 42.6440 ± 0.0036
Longitude 13.3422 ± 0.0037
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81902421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 254
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 174
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
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 19
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25541
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 81902421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-12 09:49:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MIGL.HHZ. 2020-08-12T09:41:19.29 3.0 undecidable manual Sn 0.89 0
IV.MCRV.HHZ. 2020-08-12T09:41:11.98 3.0 undecidable manual Sg 11.04 0
IV.ARVD.HHZ. 2020-08-12T09:40:28.72 3.0 undecidable manual Pg 3.43 0
IV.VIVA.HHZ. 2020-08-12T09:40:25.36 3.0 positive manual Pn 1.26 0
IV.GIGS.HHE. 2020-08-12T09:40:23.00 0.6 undecidable manual S 138 28.3494 103 -0.03 50
IV.FIAM.HHZ. 2020-08-12T09:40:22.02 3.0 negative manual Pg 3.18 0
IV.GIUL.HHZ. 2020-08-12T09:40:22.44 3.0 negative manual Pn -1.11 0
IV.LNSS.HNN. 2020-08-12T09:40:22.24 0.3 undecidable manual S 260 25.0527 106 0.06 75
IV.NRCA.HHZ. 2020-08-12T09:40:22.87 0.6 undecidable manual S 319 28.0497 103 -0.09 50
IV.SRES.HHZ. 2020-08-12T09:40:21.46 3.0 positive manual P -1.73 0
IV.TERO.HHZ. 2020-08-12T09:40:21.18 0.6 undecidable manual S 96 21.4674 110 -0.1 50
IV.RM33.EHZ. 2020-08-12T09:40:20.31 0.6 undecidable manual S 215 18.2706 116 -0.17 50
IV.MTRA.EHZ. 2020-08-12T09:40:19.25 0.6 undecidable manual S 20 13.2756 128 -0.1 51
IV.LNSS.HNN. 2020-08-12T09:40:18.32 0.1 undecidable manual P 260 25.0527 106 0.06 100
IV.NRCA.HHZ. 2020-08-12T09:40:18.49 0.1 undecidable manual P 319 28.0497 103 -0.22 98
IV.GIGS.HHE. 2020-08-12T09:40:18.66 0.1 undecidable manual P 138 28.3494 103 -0.09 99
IV.RM33.EHZ. 2020-08-12T09:40:17.37 0.3 positive manual P 215 18.2706 116 0.1 75
IV.TERO.HHZ. 2020-08-12T09:40:17.86 0.1 undecidable manual P 96 21.4674 110 0.12 100
IV.MTRA.EHZ. 2020-08-12T09:40:16.82 0.1 undecidable manual P 20 13.2756 128 0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHN. ML:1.2 0.00011899999999999999 0.5 AML other m 2020-08-12T09:40:19.33
IV.MTRA.EHE. ML:1.0 0.00007685 0.16 AML other m 2020-08-12T09:40:19.76
IV.RM33.EHN. ML:1.0 0.00006409999999999999 0.16 AML other m 2020-08-12T09:40:20.57
IV.RM33.EHE. ML:0.9 0.000052699999999999993 1.38 AML other m 2020-08-12T09:40:21.78
IV.TERO.HHE. ML:0.8 0.0000421 0.42 AML other m 2020-08-12T09:40:21.38
IV.TERO.HHN. ML:1.0 0.00006510000000000001 0.84 AML other m 2020-08-12T09:40:21.94
IV.NRCA.HHE. ML:1.1 0.00005690000000000001 0.16 AML other m 2020-08-12T09:40:23.20
IV.NRCA.HHN. ML:0.9 0.000038650000000000004 0.12 AML other m 2020-08-12T09:40:24.34
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