Earthquake with magnitude of ML 1.2 on date 16-09-2019 and time 22:27:38 (Italy) in region 3 km E Amatrice (RI)

A magnitude ML 1.2 earthquake occured in region: 3 km E Amatrice (RI), on

  • 16-09-2019 20:27:38 (UTC)
  • 16-09-2019 22:27:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.64, 13.33 at 9 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
Campotosto AQ 9 542 3199
Accumoli RI 9 667 3866
Capitignano AQ 13 665 4531
Cittareale RI 14 482 5013
Montereale AQ 14 2581 7594
Cortino TE 15 656 8250
Arquata del Tronto AP 16 1178 9428
Crognaleto TE 16 1297 10725
Acquasanta Terme AP 16 2916 13641
Rocca Santa Maria TE 17 537 14178
Valle Castellana TE 18 977 15155
Fano Adriano TE 19 296 15451

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km W of Teramo (54892 inhabitants)
32 Km N of L'Aquila (69753 inhabitants)
57 Km E of Terni (111501 inhabitants)
62 Km SE of Foligno (57155 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
75 Km W of Pescara (121014 inhabitants)
76 Km W of Chieti (51815 inhabitants)
86 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
93 Km SE of Perugia (166134 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 1.2 2019-09-16
20:27:38
42.64 13.33 9 2019-09-16
20:31:36
Sala Sismica INGV-Roma 72473061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-16 20:27:38 ± 0.1
Latitude 42.64 ± 0.00
Longitude 13.33 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72473061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 567
Semi-minor axis of confidence ellipse (meter) 197
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 105
Circular confidence region, given by single value of horizontal uncertainty (meter) 570
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.32555
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 72473061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-16 20:31:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2019-09-16T20:27:59.48 3.0 undecidable manual S -0.89 0
IV.GAVE.EHZ. 2019-09-16T20:27:51.14 0.6 undecidable manual S 280 0.3256 50 -0.01 48
IV.MC2.EHZ. 2019-09-16T20:27:50.65 0.6 undecidable manual S 339 0.2941 50 0.43 47
IV.NRCA.HHZ. 2019-09-16T20:27:48.85 0.6 undecidable manual S 321 0.2527 108 -0.05 49
IV.MF5.EHZ. 2019-09-16T20:27:46.85 3.0 positive manual P 0.16 0
IV.RM33.EHZ. 2019-09-16T20:27:45.35 0.6 undecidable manual S 214 0.1529 118 -0.01 51
IV.MC2.EHZ. 2019-09-16T20:27:45.32 0.6 undecidable manual P 339 0.2941 50 -0.01 48
IV.GAVE.EHZ. 2019-09-16T20:27:45.74 1.0 negative manual P 280 0.3256 50 -0.12 24
IV.NRCA.HHZ. 2019-09-16T20:27:44.55 0.1 positive manual P 321 0.2527 108 -0.02 100
IV.MMO1.EHZ. 2019-09-16T20:27:44.63 0.6 negative manual P 359 0.2626 108 -0.14 48
IV.MTRA.EHZ. 2019-09-16T20:27:44.55 0.6 undecidable manual S 22 0.1295 123 -0.04 51
IV.MTRA.EHZ. 2019-09-16T20:27:42.18 0.3 undecidable manual P 22 0.1295 123 0.1 76
IV.RM33.EHZ. 2019-09-16T20:27:42.67 0.6 positive manual P 214 0.1529 118 0.15 50
IV.TERO.HHZ. 2019-09-16T20:27:42.94 3.0 undecidable manual P -1.6 0
IV.SMA1.EHZ. 2019-09-16T20:27:41.74 0.6 undecidable manual S 147 0.0072 175 -0.12 52
IV.SMA1.EHZ. 2019-09-16T20:27:40.62 1.0 undecidable manual P 147 0.0072 175 0.11 26
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:0 9.47531E-5 0.0896 AML other m 2019-09-16T20:27:42.43
IV.SMA1.EHN. ML:0 0.000100774875 0.1664 AML other m 2019-09-16T20:27:42.55
IV.MTRA.HNE. ML:1.6 0.00038911045 0.2048 AML other m 2019-09-16T20:27:44.89
IV.MTRA.HNN. ML:1.4 0.00026058975 0.2176 AML other m 2019-09-16T20:27:45.02
IV.MTRA.EHE. ML:1.6 0.0003829522 0.192 AML other m 2019-09-16T20:27:44.90
IV.MTRA.EHN. ML:1.4 0.0002458915 0.2048 AML other m 2019-09-16T20:27:45.02
IV.RM33.HNE. ML:1.2 0.0001277069 0.6912 AML other m 2019-09-16T20:27:43.48
IV.RM33.HNN. ML:1.1 0.000108688465 0.6784 AML other m 2019-09-16T20:27:51.46
IV.RM33.EHE. ML:0.8 5.711449E-5 0.2432 AML other m 2019-09-16T20:27:46.05
IV.RM33.EHN. ML:0.9 6.4367675E-5 0.1408 AML other m 2019-09-16T20:27:45.45
IV.TERO.HHE. ML:0.7 3.336759E-5 0.0512 AML other m 2019-09-16T20:27:42.92
IV.TERO.HHN. ML:0.7 3.5404385E-5 0.064 AML other m 2019-09-16T20:27:45.90
IV.TERO.HNE. ML:1.5 0.0002211834 1.4592 AML other m 2019-09-16T20:27:50.73
IV.TERO.HNN. ML:0.9 4.914123E-5 0.6528 AML other m 2019-09-16T20:27:52.09
IV.NRCA.HNE. ML:1.4 0.000135450035 0.0896 AML other m 2019-09-16T20:27:49.11
IV.NRCA.HNN. ML:1.4 0.00012079201 0.0896 AML other m 2019-09-16T20:27:49.06
IV.NRCA.HHE. ML:1.5 0.000152155555 0.1024 AML other m 2019-09-16T20:27:49.10
IV.NRCA.HHN. ML:1.4 0.000136609805 0.0768 AML other m 2019-09-16T20:27:48.99
IV.GAVE.HNE. ML:1.5 0.000128913335 1.0752 AML other m 2019-09-16T20:27:59.11
IV.GAVE.HNN. ML:1.7 0.00018723915 0.6912 AML other m 2019-09-16T20:27:49.54
IV.GAVE.EHE. ML:0.7 1.99839265E-5 0.2048 AML other m 2019-09-16T20:27:54.60
IV.GAVE.EHN. ML:0.7 1.815023E-5 0.1536 AML other m 2019-09-16T20:27:53.05
IV.MF5.EHE. ML:1.1 4.31799834E-5 2.6368 AML other m 2019-09-16T20:28:05.18
IV.MF5.EHN. ML:0.8 1.7707795E-5 0.2176 AML other m 2019-09-16T20:27:53.59
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