Earthquake with magnitude of ML 1.1 on date 05-12-2019 and time 23:16:57 (Italy) in region 3 km W Amatrice (RI)

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

  • 05-12-2019 22:16:57 (UTC)
  • 05-12-2019 23:16:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.62, 13.25 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 3 2657 2657
Cittareale RI 7 482 3139
Accumoli RI 8 667 3806
Montereale AQ 11 2581 6387
Capitignano AQ 12 665 7052
Campotosto AQ 12 542 7594
Borbona RI 16 617 8211
Posta RI 17 694 8905
Arquata del Tronto AP 17 1178 10083
Cagnano Amiterno AQ 18 1369 11452
Barete AQ 19 737 12189

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
58 Km SE of Foligno (57155 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
81 Km W of Pescara (121014 inhabitants)
81 Km W of Chieti (51815 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
89 Km SE of Perugia (166134 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.1 2019-12-05
22:16:57
42.62 13.25 12 2019-12-05
22:24:40
Sala Sismica INGV-Roma 74357371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-05 22:16:57 ± 0.09
Latitude 42.62 ± 0.00
Longitude 13.25 ± 0.01
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 74357371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 535
Semi-minor axis of confidence ellipse (meter) 254
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 39
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.02608
Epicentral distance of station farthest from the epicenter (degree) 0.35883
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 74357371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-05 22:24:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2019-12-05T22:17:07.63 0.3 undecidable manual S 90 0.2608 92 -0.32 90
IV.NRCA.HHZ. 2019-12-05T22:17:06.84 0.6 undecidable manual S 335 0.2329 92 -0.28 61
IV.MTRA.EHZ. 2019-12-05T22:17:05.06 0.6 undecidable manual S 39 0.1718 95 -0.26 61
IV.ARRO.EHZ. 2019-12-05T22:17:05.36 0.3 undecidable manual P 263 0.3588 91 0.03 93
IV.MC2.EHZ. 2019-12-05T22:17:04.97 0.3 undecidable manual P 351 0.2914 91 0.79 78
IV.CAMP.HHZ. 2019-12-05T22:17:04.37 0.6 undecidable manual S 127 0.1466 98 -0.2 63
IV.LNSS.HHZ. 2019-12-05T22:17:04.64 0.6 undecidable manual S 263 0.1556 96 -0.19 64
IV.MMO1.EHZ. 2019-12-05T22:17:04.08 0.3 undecidable manual P 12 0.2815 91 0.06 96
IV.TERO.HHZ. 2019-12-05T22:17:03.53 0.3 undecidable manual P 90 0.2608 92 -0.12 94
IV.GAVE.EHZ. 2019-12-05T22:17:03.67 0.3 undecidable manual P 285 0.2698 92 -0.14 95
IV.RM33.EHZ. 2019-12-05T22:17:03.48 0.6 undecidable manual S 193 0.1169 109 -0.25 64
IV.NRCA.HHZ. 2019-12-05T22:17:03.07 0.3 undecidable manual P 335 0.2329 92 -0.1 95
IV.CAMP.HHZ. 2019-12-05T22:17:02.15 0.3 undecidable manual P 127 0.1466 98 0.45 90
IV.SMA1.EHZ. 2019-12-05T22:17:02.61 0.6 undecidable manual S 83 0.0639 138 0.19 65
IV.MTRA.EHZ. 2019-12-05T22:17:02.12 0.3 undecidable manual P 39 0.1718 95 -0.02 97
IV.RM33.EHZ. 2019-12-05T22:17:01.24 0.3 undecidable manual P 193 0.1169 109 0.03 98
IV.LNSS.HHZ. 2019-12-05T22:17:01.77 0.3 undecidable manual P 263 0.1556 96 -0.08 98
IV.T1299.HNZ. 2019-12-05T22:17:01.69 0.6 undecidable manual S 65 0.0261 162 -0.18 64
IV.T1299.HNZ. 2019-12-05T22:17:00.23 0.3 undecidable manual P 65 0.0261 162 0.09 100
IV.SMA1.EHZ. 2019-12-05T22:17:00.72 0.3 undecidable manual P 83 0.0639 138 0.26 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VVLD.HHE. ML:1.3 2.745E-5 0.42 AML other m 2019-12-05T22:17:45.24
IV.SMA1.EHE. ML:1.6 0.000573748 0.2304 AML other m 2019-12-05T22:17:02.87
IV.SMA1.EHN. ML:1 0.0001272306 0.1024 AML other m 2019-12-05T22:17:03.10
IV.RM33.HNE. ML:1.2 0.000141178675 0.2304 AML other m 2019-12-05T22:17:04.34
IV.RM33.EHE. ML:1 0.000112347905 0.192 AML other m 2019-12-05T22:17:04.34
IV.RM33.EHN. ML:1 9.97869E-5 0.1536 AML other m 2019-12-05T22:17:03.77
IV.LNSS.HHE. ML:0.6 3.5977005E-5 0.1024 AML other m 2019-12-05T22:17:06.23
IV.LNSS.HHN. ML:0.6 3.131886E-5 0.1664 AML other m 2019-12-05T22:17:05.64
IV.MTRA.HNE. ML:1.3 0.00014610315 0.3712 AML other m 2019-12-05T22:17:06.02
IV.MTRA.HNN. ML:1 7.691631E-5 0.32 AML other m 2019-12-05T22:17:06.12
IV.MTRA.EHE. ML:1.1 8.683831E-5 0.2304 AML other m 2019-12-05T22:17:06.02
IV.MTRA.EHN. ML:0.9 5.8822515E-5 0.0896 AML other m 2019-12-05T22:17:05.16
IV.NRCA.HHE. ML:1.2 9.350445E-5 0.128 AML other m 2019-12-05T22:17:07.08
IV.NRCA.HHN. ML:0.8 3.6965285E-5 0.128 AML other m 2019-12-05T22:17:07.20
IV.GAVE.EHE. ML:1.1 5.4956975E-5 0.1536 AML other m 2019-12-05T22:17:08.60
IV.GAVE.EHN. ML:1 4.634088E-5 0.1408 AML other m 2019-12-05T22:17:08.63
IV.ARRO.EHE. ML:0.5 1.0861379235E-5 0.1792 AML other m 2019-12-05T22:17:12.95
IV.ARRO.EHN. ML:0.5 1.22690525E-5 0.2944 AML other m 2019-12-05T22:17:13.24
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download