Earthquake with magnitude of ML 1.3 on date 23-11-2020 and time 01:02:50 (Italy) in region 6 km E Amatrice (RI)

A magnitude ML 1.3 earthquake occured in region: 6 km E Amatrice (RI), on

  • 23-11-2020 00:02:50 (UTC)
  • 23-11-2020 01:02:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.64, 13.36 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 6 2657 2657
Campotosto AQ 9 542 3199
Accumoli RI 11 667 3866
Cortino TE 12 656 4522
Capitignano AQ 14 665 5187
Crognaleto TE 14 1297 6484
Rocca Santa Maria TE 15 537 7021
Acquasanta Terme AP 15 2916 9937
Arquata del Tronto AP 15 1178 11115
Valle Castellana TE 15 977 12092
Montereale AQ 16 2581 14673
Cittareale RI 17 482 15155
Fano Adriano TE 18 296 15451

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km W of Teramo (54892 inhabitants)
33 Km N of L'Aquila (69753 inhabitants)
59 Km E of Terni (111501 inhabitants)
64 Km SE of Foligno (57155 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
73 Km W of Pescara (121014 inhabitants)
74 Km W of Chieti (51815 inhabitants)
88 Km NE of Guidonia Montecelio (88673 inhabitants)
88 Km NE of Tivoli (56533 inhabitants)
95 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
Reviewed
Rev100
ML 1.3 2020-11-23
00:02:50
42.64 13.36 13 2020-11-23
00:09:18
Sala Sismica INGV-Roma 84957711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-23 00:02:50 ± 0.07
Latitude 42.64 ± 0.00
Longitude 13.36 ± 0.01
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84957711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 508
Semi-minor axis of confidence ellipse (meter) 363
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 510
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 25
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) 0.02158
Epicentral distance of station farthest from the epicenter (degree) 0.46225
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 84957711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-23 00:09:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2020-11-23T00:03:07.03 0.6 undecidable manual S 346 0.4623 92 0.12 47
IV.FDMO.HHZ. 2020-11-23T00:03:06.33 0.6 undecidable manual S 333 0.4407 92 0.06 47
IV.MF5.EHE. 2020-11-23T00:03:04.56 0.6 undecidable manual S 12 0.3525 93 0.91 38
IV.MMO1.EHZ. 2020-11-23T00:03:00.63 0.6 undecidable manual S 355 0.2572 95 -0.21 47
IV.CSP1.EHZ. 2020-11-23T00:03:00.05 1.0 undecidable manual P 346 0.4623 92 -0.03 24
IV.LNSS.HHZ. 2020-11-23T00:03:00.17 0.6 undecidable manual S 260 0.2383 96 -0.1 49
IV.NRCA.HHZ. 2020-11-23T00:03:00.57 0.6 undecidable manual S 317 0.2617 95 -0.41 46
IV.GIGS.HHN. 2020-11-23T00:03:00.36 0.6 undecidable manual S 140 0.2464 96 -0.15 48
IV.FDMO.HHZ. 2020-11-23T00:02:59.56 1.0 negative manual P 333 0.4407 92 -0.14 23
IV.ARRO.EHZ. 2020-11-23T00:02:59.66 1.0 positive manual P 262 0.4416 92 -0.05 24
IV.MF5.EHE. 2020-11-23T00:02:58.62 0.1 undecidable manual P 12 0.3525 93 0.43 90
IV.TERO.HHZ. 2020-11-23T00:02:58.34 0.6 undecidable manual S 96 0.1808 101 -0.25 47
IV.NRCA.HHZ. 2020-11-23T00:02:56.45 0.1 undecidable manual P 317 0.2617 95 -0.2 95
IV.CAMP.HHZ. 2020-11-23T00:02:56.74 0.6 undecidable manual S 161 0.1133 119 0.04 51
IV.MTRA.EHE. 2020-11-23T00:02:56.32 0.6 undecidable manual S 13 0.1169 118 -0.48 46
IV.GIGS.HHN. 2020-11-23T00:02:56.32 0.1 undecidable manual P 140 0.2464 96 -0.06 97
IV.MMO1.EHZ. 2020-11-23T00:02:56.20 1.0 positive manual P 355 0.2572 95 -0.37 23
IV.LNSS.HHZ. 2020-11-23T00:02:56.25 0.1 positive manual P 260 0.2383 96 0.01 99
IV.TERO.HHZ. 2020-11-23T00:02:55.20 0.3 undecidable manual P 96 0.1808 101 -0.07 73
IV.T1299.EHE. 2020-11-23T00:02:55.59 0.6 undecidable manual S 261 0.0576 145 0.12 50
IV.CAMP.HHZ. 2020-11-23T00:02:54.34 0.1 undecidable manual P 161 0.1133 119 0.16 99
IV.MTRA.EHE. 2020-11-23T00:02:54.10 0.1 undecidable manual P 13 0.1169 118 -0.14 99
IV.SMA1.EHZ. 2020-11-23T00:02:54.75 0.6 undecidable manual S 235 0.0216 166 -0.29 49
IV.SMA1.EHZ. 2020-11-23T00:02:53.39 0.1 undecidable manual P 235 0.0216 166 0.17 100
IV.T1299.EHE. 2020-11-23T00:02:53.70 0.1 undecidable manual P 261 0.0576 145 0.23 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.2 0.0002325 0.24 AML other m 2020-11-23T00:02:55.21
IV.SMA1.EHE. ML:1.5 0.000543 0.2 AML other m 2020-11-23T00:02:55.12
IV.TERO.HHN. ML:1.6 0.0002595 0.58 AML other m 2020-11-23T00:02:58.39
IV.TERO.HHE. ML:1.6 0.0003075 0.14 AML other m 2020-11-23T00:02:58.46
IV.NRCA.HHE. ML:1.2 8.46E-5 1.08 AML other m 2020-11-23T00:03:01.59
IV.LNSS.HHE. ML:1.2 7.375E-5 0.74 AML other m 2020-11-23T00:03:01.43
IV.NRCA.HHN. ML:1.2 7.39E-5 0.12 AML other m 2020-11-23T00:03:01.53
IV.LNSS.HHN. ML:0.9 4.365E-5 0.3 AML other m 2020-11-23T00:03:02.78
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