Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 13-10-2019 and time 11:45:38 (Italy) 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 09:45:38 (UTC)
  • 13-10-2019 11:45:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6100, 13.2440 at 12 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
Amatrice RI 4 2657 2657
Cittareale RI 7 482 3139
Montereale AQ 9 2581 5720
Accumoli RI 10 667 6387
Capitignano AQ 11 665 7052
Campotosto AQ 12 542 7594
Borbona RI 14 617 8211
Posta RI 15 694 8905
Cagnano Amiterno AQ 17 1369 10274
Barete AQ 18 737 11011
Arquata del Tronto AP 19 1178 12189
Pizzoli AQ 20 4326 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)
81 Km NE of Tivoli (56533 inhabitants)
81 Km W of Chieti (51815 inhabitants)
81 Km W of Pescara (121014 inhabitants)
89 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
Bulletin
Rev1000 		ML 1.4 2019-10-13
09:45:38		 42.6097 13.2442 12 2020-02-28
16:41:59		 Bollettino Sismico Italiano INGV 73489211
Reviewed
Rev100 		ML 1.6 2019-10-13
09:45:38		 42.6098 13.2475 13 2019-10-13
09:51:58		 Sala Sismica INGV-Roma 73231691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-13 09:45:38 ± 0.07
Latitude 42.6097 ± 0.0036
Longitude 13.2442 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73489211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 369
Semi-minor axis of confidence ellipse (meter) 229
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 219
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
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 26
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.53150
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 73231691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-13 09:51:58

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 73489211
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-28 10:32:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VCEL.EHZ. 2019-10-13T09:45:57.33 3.0 undecidable manual S 0.61 0
IV.MOMA.HHZ. 2019-10-13T09:45:55.73 0.3 undecidable manual S 292 58.9965 91 -0.56 62
IV.ARRO.EHZ. 2019-10-13T09:45:50.81 0.3 undecidable manual S 265 39.2274 92 -0.2 70
IV.MC2.EHZ. 2019-10-13T09:45:49.86 0.3 undecidable manual S 352 33.744 92 0.31 70
IV.MMO1.EHN. 2019-10-13T09:45:49.38 0.1 undecidable manual S 12 32.8449 93 0.08 98
IV.MOMA.HHZ. 2019-10-13T09:45:48.75 0.3 undecidable manual P 292 58.9965 91 0.16 68
IV.GIGS.HHZ. 2019-10-13T09:45:48.71 0.3 undecidable manual S 123 31.9458 93 -0.36 69
IV.NRCA.HHZ. 2019-10-13T09:45:47.44 0.3 undecidable manual S 337 26.9508 94 -0.3 70
IV.FDMO.HHZ. 2019-10-13T09:45:47.23 0.3 undecidable manual P 345 49.0176 91 0.18 69
IV.ARRO.EHZ. 2019-10-13T09:45:45.53 0.1 undecidable manual P 265 39.2274 92 -0.01 97
IV.MTRA.EHZ. 2019-10-13T09:45:45.56 0.3 undecidable manual S 37 20.4684 97 -0.46 68
IV.MC2.EHZ. 2019-10-13T09:45:44.75 0.1 undecidable manual P 352 33.744 92 0.05 98
IV.MMO1.EHN. 2019-10-13T09:45:44.66 0.6 undecidable manual P 12 32.8449 93 0.1 48
IV.CAMP.HHZ. 2019-10-13T09:45:44.60 0.3 undecidable manual S 121 15.7731 104 -0.17 74
IV.LNSS.HHZ. 2019-10-13T09:45:44.93 0.3 undecidable manual S 267 16.6722 102 -0.08 75
IV.GIGS.HHZ. 2019-10-13T09:45:44.32 0.1 undecidable manual P 123 31.9458 93 -0.1 97
IV.RM33.EHZ. 2019-10-13T09:45:43.67 0.3 undecidable manual S 192 11.4774 120 -0.03 77
IV.NRCA.HHZ. 2019-10-13T09:45:43.68 0.1 positive manual P 337 26.9508 94 0.02 99
IV.SMA1.EHZ. 2019-10-13T09:45:43.01 0.3 undecidable manual S 73 7.7811 136 0.08 76
IV.LNSS.HHZ. 2019-10-13T09:45:42.25 0.1 positive manual P 267 16.6722 102 0.17 98
IV.MTRA.EHZ. 2019-10-13T09:45:42.63 0.1 positive manual P 37 20.4684 97 -0.03 100
IV.T1299.HNE. 2019-10-13T09:45:42.21 0.3 undecidable manual S 49 4.0959 156 -0.18 74
IV.CAMP.HHZ. 2019-10-13T09:45:42.08 0.1 undecidable manual P 121 15.7731 104 0.14 98
IV.SMA1.EHZ. 2019-10-13T09:45:41.20 0.1 negative manual P 73 7.7811 136 0.32 97
IV.RM33.EHZ. 2019-10-13T09:45:41.58 0.1 undecidable manual P 192 11.4774 120 0.25 97
IV.T1299.HNE. 2019-10-13T09:45:40.75 0.1 undecidable manual P 49 4.0959 156 0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAMP.HHE. ML:1.0 0.000091258565 0.2624 AML other m 2019-10-13T09:45:46.62
IV.CAMP.HHN. ML:1.1 0.00011361471 0.48 AML other m 2019-10-13T09:45:46.26
IV.LNSS.HNN. ML:1.5 0.00024768915 0.1472 AML other m 2019-10-13T09:45:46.07
IV.LNSS.HHE. ML:1.6 0.00032320535 0.1792 AML other m 2019-10-13T09:45:45.24
IV.LNSS.HHN. ML:1.5 0.00026862655 0.1408 AML other m 2019-10-13T09:45:46.00
IV.LNSS.HNE. ML:1.5 0.0002832135 0.1344 AML other m 2019-10-13T09:45:46.18
IV.NRCA.HNN. ML:1.6 0.0002029966 0.1088 AML other m 2019-10-13T09:45:48.64
IV.NRCA.HHE. ML:1.6 0.00022607655 0.1024 AML other m 2019-10-13T09:45:48.71
IV.NRCA.HNE. ML:1.6 0.0002175457 0.1024 AML other m 2019-10-13T09:45:48.76
IV.NRCA.HHN. ML:1.6 0.000211368 0.1152 AML other m 2019-10-13T09:45:48.64
IV.GIGS.HHE. ML:0.8 0.000029151125 0.0576 AML other m 2019-10-13T09:45:49.90
IV.GIGS.HHN. ML:1.2 0.00006995832999999999 0.0832 AML other m 2019-10-13T09:45:49.04
IV.ARRO.EHN. ML:1.3 0.000066787845 0.16 AML other m 2019-10-13T09:45:54.00
IV.ARRO.EHE. ML:1.2 0.00005471002 0.1792 AML other m 2019-10-13T09:45:52.49
IV.FDMO.HHN. ML:1.1 0.000034263045 0.1984 AML other m 2019-10-13T09:45:55.10
IV.FDMO.HHE. ML:1.1 0.000031925290000000003 0.1408 AML other m 2019-10-13T09:45:54.85
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