Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 13-10-2019 and time 09:34:21 (UTC) in region 4 km SW Amatrice (RI)

A magnitude ML 1.4 earthquake occured in region: 4 km SW Amatrice (RI), on

  • 13-10-2019 09:34:21 (UTC)
  • 13-10-2019 11:34:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6050, 13.2480 at 11 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 4 2657 2657
Cittareale RI 7 482 3139
Montereale AQ 9 2581 5720
Accumoli RI 10 667 6387
Capitignano AQ 10 665 7052
Campotosto AQ 11 542 7594
Borbona RI 14 617 8211
Posta RI 15 694 8905
Cagnano Amiterno AQ 16 1369 10274
Barete AQ 17 737 11011
Pizzoli AQ 19 4326 15337
Arquata del Tronto AP 19 1178 16515

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
49 Km E of Terni (111501 inhabitants)
59 Km SE of Foligno (57155 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
80 Km NE of Guidonia Montecelio (88673 inhabitants)
80 Km NE of Tivoli (56533 inhabitants)
81 Km W of Chieti (51815 inhabitants)
81 Km W of Pescara (121014 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
96 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
Reviewed
Rev100 		ML 1.4 2019-10-13
09:34:21		 42.6052 13.2483 11 2019-10-13
09:41:24		 Sala Sismica INGV-Roma 73231561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-13 09:34:21 ± 0.09
Latitude 42.6052 ± 0.0045
Longitude 13.2483 ± 0.0049
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73231561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 432
Semi-minor axis of confidence ellipse (meter) 208
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 3
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48743
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 73231561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-13 09:41:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.OSSC.HHZ. 2019-10-13T09:35:17.01 3.0 undecidable manual Sg 4.9 0
IV.SGTA.HHZ. 2019-10-13T09:35:03.97 3.0 undecidable manual Pg 7.89 0
IV.VVLD.HHZ. 2019-10-13T09:34:49.79 3.0 undecidable manual S -0.07 0
IV.NARO.HHZ. 2019-10-13T09:34:41.25 3.0 undecidable manual P 0.11 0
IV.ATPI.EHZ. 2019-10-13T09:34:39.33 3.0 positive manual P -0.89 0
IV.CSP1.EHZ. 2019-10-13T09:34:38.59 0.6 undecidable manual S 356 54.1014 90 0.25 45
IV.ARRO.EHZ. 2019-10-13T09:34:34.46 0.3 undecidable manual S 266 39.5271 90 0.01 72
IV.MC2.EHZ. 2019-10-13T09:34:33.49 0.3 undecidable manual S 352 34.3434 90 0.43 67
IV.GIGS.HHZ. 2019-10-13T09:34:32.06 0.6 undecidable manual S 122 31.4463 90 -0.23 47
IV.CSP1.EHZ. 2019-10-13T09:34:31.47 0.1 undecidable manual P 356 54.1014 90 0.27 89
IV.MMO1.EHZ. 2019-10-13T09:34:31.67 3.0 undecidable manual S -0.65 0
IV.NRCA.HHZ. 2019-10-13T09:34:30.68 0.6 undecidable manual S 337 27.5502 91 -0.58 41
IV.ARRO.EHZ. 2019-10-13T09:34:28.83 0.3 negative manual P 266 39.5271 90 -0.13 70
IV.MC2.EHZ. 2019-10-13T09:34:28.24 0.1 undecidable manual P 352 34.3434 90 0.09 95
IV.LNSS.HHZ. 2019-10-13T09:34:28.31 0.6 undecidable manual S 269 16.9719 92 -0.13 48
IV.MTRA.EHZ. 2019-10-13T09:34:28.84 0.6 undecidable manual S 36 20.6682 91 -0.59 42
IV.CAMP.HHZ. 2019-10-13T09:34:27.84 0.6 undecidable manual S 120 15.1737 94 -0.13 49
IV.GIGS.HHZ. 2019-10-13T09:34:27.55 1.0 undecidable manual P 122 31.4463 90 -0.16 24
IV.RM33.EHZ. 2019-10-13T09:34:26.90 0.6 undecidable manual S 195 11.0778 115 0.01 49
IV.NRCA.HHZ. 2019-10-13T09:34:26.88 0.6 undecidable manual P 337 27.5502 91 -0.24 46
IV.SMA1.EHZ. 2019-10-13T09:34:26.24 0.6 undecidable manual S 68 7.5813 133 0.1 50
IV.LNSS.HHZ. 2019-10-13T09:34:25.44 0.6 undecidable manual P 269 16.9719 92 -0.04 49
IV.T1299.EHZ. 2019-10-13T09:34:25.44 0.3 undecidable manual S 41 4.1958 153 -0.15 73
IV.MTRA.EHZ. 2019-10-13T09:34:25.81 0.1 undecidable manual P 36 20.6682 91 -0.25 94
IV.CAMP.HHZ. 2019-10-13T09:34:25.42 0.6 undecidable manual P 120 15.1737 94 0.21 47
IV.SMA1.EHZ. 2019-10-13T09:34:24.40 0.1 negative manual P 68 7.5813 133 0.24 96
IV.RM33.EHZ. 2019-10-13T09:34:24.76 1.0 undecidable manual P 195 11.0778 115 0.17 24
IV.T1299.EHZ. 2019-10-13T09:34:23.94 0.1 undecidable manual P 41 4.1958 153 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:2.1 0.0017050000000000001 0.24 AML other m 2019-10-13T09:34:26.48
IV.SMA1.EHN. ML:1.7 0.0006684999999999999 0.12 AML other m 2019-10-13T09:34:26.60
IV.RM33.HNE. ML:1.6 0.0004335 1.42 AML other m 2019-10-13T09:34:27.79
IV.RM33.EHE. ML:1.5 0.0003815 1.42 AML other m 2019-10-13T09:34:27.79
IV.RM33.EHN. ML:1.6 0.00040649999999999996 0.96 AML other m 2019-10-13T09:34:27.22
IV.RM33.HNN. ML:1.6 0.0004365 0.96 AML other m 2019-10-13T09:34:27.22
IV.MTRA.EHN. ML:1.6 0.0003055 0.48 AML other m 2019-10-13T09:34:29.05
IV.LNSS.HHE. ML:1.3 0.0001655 0.7 AML other m 2019-10-13T09:34:29.43
IV.CAMP.HHN. ML:0.8 0.000055599999999999996 0.58 AML other m 2019-10-13T09:34:29.45
IV.LNSS.HHN. ML:1.3 0.0001625 0.34 AML other m 2019-10-13T09:34:29.50
IV.CAMP.HHE. ML:0.6 0.000042300000000000005 0.5 AML other m 2019-10-13T09:34:29.81
IV.MTRA.EHE. ML:1.7 0.00033899999999999995 0.2 AML other m 2019-10-13T09:34:29.78
IV.NRCA.HHE. ML:1.4 0.0001185 1.36 AML other m 2019-10-13T09:34:31.22
IV.GIGS.HHN. ML:0.8 0.00002835 0.1 AML other m 2019-10-13T09:34:32.23
IV.GIGS.HHE. ML:0.5 0.00001325 0.56 AML other m 2019-10-13T09:34:32.37
IV.NRCA.HHN. ML:1.3 0.0000967 0.12 AML other m 2019-10-13T09:34:33.08
IV.ARRO.EHE. ML:0.9 0.000028250000000000002 1.16 AML other m 2019-10-13T09:34:35.69
IV.ARRO.EHN. ML:1.1 0.00003805 1.04 AML other m 2019-10-13T09:34:37.72
IV.MTRA.HNE. ML:1.6 0.0002897945 0.1984 AML other m 2019-10-13T09:34:29.67
IV.MTRA.HNN. ML:1.6 0.00027741589999999997 0.1088 AML other m 2019-10-13T09:34:29.05
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