Earthquake with magnitude of ML 1.0 on date 31-08-2019 and time 10:27:12 (Italy) in region 2 km SE Amatrice (RI)

A magnitude ML 1.0 earthquake occured in region: 2 km SE Amatrice (RI), on

  • 31-08-2019 08:27:12 (UTC)
  • 31-08-2019 10:27:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6180, 13.3130 at 12 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 2 2657 2657
Campotosto AQ 8 542 3199
Accumoli RI 10 667 3866
Capitignano AQ 11 665 4531
Montereale AQ 12 2581 7112
Cittareale RI 12 482 7594
Crognaleto TE 16 1297 8891
Cortino TE 16 656 9547
Arquata del Tronto AP 17 1178 10725
Barete AQ 19 737 11462
Borbona RI 19 617 12079
Acquasanta Terme AP 19 2916 14995
Cagnano Amiterno AQ 19 1369 16364
Rocca Santa Maria TE 19 537 16901
Fano Adriano TE 20 296 17197

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km N of L'Aquila (69753 inhabitants)
32 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)
76 Km W of Chieti (51815 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
84 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 2019-08-31
08:27:12
42.6177 13.3128 12 2019-08-31
09:30:50
Sala Sismica INGV-Roma 71960561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-31 08:27:12 ± 0.07
Latitude 42.6177 ± 0.0036
Longitude 13.3128 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71960561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 345
Semi-minor axis of confidence ellipse (meter) 152
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 332
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) 83
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.31656
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 71960561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-31 09:30:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CR.ZAG.BHZ. 2019-08-31T08:28:37.06 3.0 undecidable manual Sn 0.97 0
IV.SARZ.HHZ. 2019-08-31T08:28:29.29 3.0 undecidable manual Sg 7.23 0
IV.ZONE.HHZ. 2019-08-31T08:28:28.64 3.0 undecidable manual Sg 6.67 0
IV.SPS2.HHZ. 2019-08-31T08:28:18.43 3.0 negative manual Pn 7.78 0
IV.CAPR.HNZ. 2019-08-31T08:28:13.20 3.0 undecidable manual Sn -8.13 0
OX.VARN.HHZ. 2019-08-31T08:28:05.42 3.0 undecidable manual Sn -9.99 0
GU.GRAM.HHZ. 2019-08-31T08:27:32.33 3.0 undecidable manual Pg -0.33 0
IV.ARCI.HNZ. 2019-08-31T08:27:26.00 3.0 undecidable manual S -0.47 0
IV.NRCA.HHZ. 2019-08-31T08:27:22.15 0.1 undecidable manual S 326 28.9488 94 -0.15 98
CR.BRJN.HHZ. 2019-08-31T08:27:22.89 3.0 undecidable manual Pn -6.55 0
IV.GIGS.HHZ. 2019-08-31T08:27:21.95 0.3 undecidable manual S 131 27.9498 95 -0.11 73
IV.TERO.HHZ. 2019-08-31T08:27:20.89 0.1 undecidable manual S 89 23.754 96 -0.04 100
IV.NRCA.HHZ. 2019-08-31T08:27:18.14 0.3 undecidable manual P 326 28.9488 94 0.14 73
IV.GAVE.EHZ. 2019-08-31T08:27:18.89 0.1 undecidable manual P 284 35.1426 93 -0.06 98
IV.RM33.EHZ. 2019-08-31T08:27:18.36 0.1 undecidable manual S 214 14.4744 111 -0.16 100
IV.MTRA.EHZ. 2019-08-31T08:27:18.99 0.3 undecidable manual S 24 16.872 105 -0.13 75
IV.TERO.HHZ. 2019-08-31T08:27:17.39 1.0 undecidable manual P 89 23.754 96 0.18 24
IV.GIGS.HHZ. 2019-08-31T08:27:17.93 0.6 undecidable manual P 131 27.9498 95 0.07 50
IV.MTRA.EHZ. 2019-08-31T08:27:16.28 0.6 undecidable manual P 24 16.872 105 0.12 50
IV.SMA1.EHZ. 2019-08-31T08:27:16.23 0.3 undecidable manual S 52 2.2977 166 -0.12 77
IV.RM33.EHZ. 2019-08-31T08:27:15.95 0.1 positive manual P 214 14.4744 111 0.14 100
IV.SMA1.EHZ. 2019-08-31T08:27:14.81 0.1 negative manual P 52 2.2977 166 0.25 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.0 0.000158 0.44 AML other m 2019-08-31T08:27:16.68
IV.SMA1.EHE. ML:1.1 0.000201 1.26 AML other m 2019-08-31T08:27:16.68
IV.RM33.EHN. ML:1.0 0.00008724999999999999 0.36 AML other m 2019-08-31T08:27:18.62
IV.RM33.EHE. ML:1.2 0.00014649999999999998 0.18 AML other m 2019-08-31T08:27:18.79
IV.MTRA.EHN. ML:1.0 0.00008280000000000001 0.06 AML other m 2019-08-31T08:27:19.18
IV.MTRA.EHE. ML:0.9 0.00006765 0.22 AML other m 2019-08-31T08:27:19.10
IV.TERO.HHN. ML:0.7 0.000032149999999999995 1.32 AML other m 2019-08-31T08:27:20.92
IV.TERO.HHE. ML:0.7 0.000028499999999999998 0.7 AML other m 2019-08-31T08:27:20.99
IV.GAVE.EHN. ML:1.1 0.00004505 0.18 AML other m 2019-08-31T08:27:29.82
IV.GAVE.EHE. ML:1.1 0.000052199999999999995 0.08 AML other m 2019-08-31T08:27:33.16
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