Earthquake with magnitude of ML 1.3 on date 12-03-2021 and time 21:50:50 (UTC) in region 3 km NE Cagnano Amiterno (AQ)

A magnitude ML 1.3 earthquake occured in region: 3 km NE Cagnano Amiterno (AQ), on

  • 12-03-2021 21:50:50 (UTC)
  • 12-03-2021 22:50:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.475, 13.249 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
Cagnano Amiterno AQ 3 1369 1369
Barete AQ 4 737 2106
Montereale AQ 6 2581 4687
Pizzoli AQ 6 4326 9013
Capitignano AQ 7 665 9678
Borbona RI 10 617 10295
Scoppito AQ 12 3727 14022
Posta RI 14 694 14716
Campotosto AQ 14 542 15258
Antrodoco RI 15 2588 17846
Micigliano RI 16 127 17973
Borgo Velino RI 17 972 18945
Cittareale RI 18 482 19427
Amatrice RI 18 2657 22084
L'Aquila AQ 18 69753 91837

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NW of L'Aquila (69753 inhabitants)
43 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
68 Km NE of Tivoli (56533 inhabitants)
68 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km SE of Foligno (57155 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
77 Km W of Chieti (51815 inhabitants)
79 Km W of Pescara (121014 inhabitants)
90 Km NE of Roma (2864731 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
96 Km NE of Velletri (53303 inhabitants)
99 Km SE of Perugia (166134 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 2021-03-12
21:50:50
42.4752 13.2493 12 2021-03-12
22:00:30
Sala Sismica INGV-Roma 88061661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-12 21:50:50 ± 0.04
Latitude 42.4752 ± 0.0018
Longitude 13.2493 ± 0.0049
Depth (km) 12 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 88061661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 274
Semi-minor axis of confidence ellipse (meter) 247
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 93
Circular confidence region, given by single value of horizontal uncertainty (meter) 270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.42808
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 88061661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-12 22:00:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2021-03-12T21:51:57.11 3.0 undecidable manual Pn 4.25 0
IV.CRTC.HHZ. 2021-03-12T21:51:34.18 3.0 undecidable manual Sn -0.71 0
IV.ACER.HHZ. 2021-03-12T21:51:16.37 3.0 undecidable manual Pn -1.56 0
IV.MMO1.EHZ. 2021-03-12T21:51:06.05 0.6 undecidable manual S 8 0.4281 92 0.2 45
IV.NRCA.HHZ. 2021-03-12T21:51:04.07 0.6 undecidable manual S 345 0.3714 92 -0.12 46
IV.TERO.HHZ. 2021-03-12T21:51:02.11 0.6 undecidable manual S 60 0.3004 93 0.05 48
IV.LNSS.HHZ. 2021-03-12T21:50:59.16 0.6 undecidable manual S 310 0.1996 97 0.04 49
IV.MMO1.EHZ. 2021-03-12T21:50:59.33 0.6 undecidable manual P 8 0.4281 92 -0.12 46
IV.FIAM.HHZ. 2021-03-12T21:50:59.98 0.3 undecidable manual S 205 0.2284 95 0.02 73
IV.GAVE.EHZ. 2021-03-12T21:50:58.01 1.0 negative manual P 310 0.3399 93 0.06 24
IV.SMA1.EHZ. 2021-03-12T21:50:58.23 0.6 undecidable manual S 22 0.1682 101 0.06 49
IV.NRCA.HHZ. 2021-03-12T21:50:58.33 0.6 negative manual P 345 0.3714 92 -0.17 46
IV.T1299.HNE. 2021-03-12T21:50:57.83 0.6 undecidable manual S 9 0.161 102 -0.14 48
IV.TERO.HHZ. 2021-03-12T21:50:56.96 0.6 undecidable manual P 60 0.3004 93 -0.3 45
IV.FIAM.HHZ. 2021-03-12T21:50:56.03 0.1 undecidable manual P 205 0.2284 95 -0.02 97
IV.SMA1.EHZ. 2021-03-12T21:50:55.15 0.3 negative manual P 22 0.1682 101 0.13 72
IV.LNSS.HHZ. 2021-03-12T21:50:55.65 0.3 positive manual P 310 0.1996 97 0.09 73
MN.AQU.HHE. 2021-03-12T21:50:55.05 0.1 undecidable manual P 136 0.1673 101 0.05 98
IV.T1299.HNE. 2021-03-12T21:50:54.92 0.1 undecidable manual P 9 0.161 102 0.02 99
IV.RM33.EHZ. 2021-03-12T21:50:54.98 0.6 undecidable manual S 323 0.0423 153 -0.18 49
IV.RM33.EHZ. 2021-03-12T21:50:53.34 0.1 negative manual P 323 0.0423 153 0.06 100
IV.LAV9.HHZ. 2021-03-12T21:50:51.90 3.0 undecidable manual P -0.02 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:1 0.00012585 0.1 AML other m 2021-03-12T21:50:53.59
IV.RM33.EHE. ML:0.9 0.00010235 0.22 AML other m 2021-03-12T21:50:55.39
IV.SMA1.EHN. ML:1.8 0.000424 0.34 AML other m 2021-03-12T21:50:58.73
IV.SMA1.EHE. ML:1.7 0.000365 0.32 AML other m 2021-03-12T21:50:58.80
IV.LNSS.HHE. ML:1.2 9.865E-5 0.66 AML other m 2021-03-12T21:50:59.60
IV.LNSS.HHN. ML:1.2 9.63E-5 0.42 AML other m 2021-03-12T21:51:00.22
IV.NRCA.HHE. ML:1.6 0.000134 0.14 AML other m 2021-03-12T21:51:04.51
IV.NRCA.HHN. ML:1.3 6.855E-5 0.14 AML other m 2021-03-12T21:51:05.10
IV.GAVE.EHE. ML:1.2 6.415E-5 0.44 AML other m 2021-03-12T21:51:22.65
IV.GAVE.EHN. ML:1.2 6.275E-5 1.44 AML other m 2021-03-12T21:51:25.86
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