Earthquake with magnitude of ML 1.3 on date 26-02-2021 and time 23:36:38 (UTC) in region 2 km W Cagnano Amiterno (AQ)

A magnitude ML 1.3 earthquake occured in region: 2 km W Cagnano Amiterno (AQ), on

  • 26-02-2021 23:36:38 (UTC)
  • 27-02-2021 00:36:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.46, 13.21 at 11 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 2 1369 1369
Barete AQ 6 737 2106
Pizzoli AQ 8 4326 6432
Montereale AQ 8 2581 9013
Borbona RI 9 617 9630
Scoppito AQ 10 3727 13357
Capitignano AQ 11 665 14022
Antrodoco RI 11 2588 16610
Posta RI 12 694 17304
Micigliano RI 12 127 17431
Borgo Velino RI 13 972 18403
Castel Sant'Angelo RI 16 1308 19711
Campotosto AQ 18 542 20253
Cittareale RI 18 482 20735
L'Aquila AQ 20 69753 90488
Tornimparte AQ 20 3187 93675

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of L'Aquila (69753 inhabitants)
47 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
64 Km NE of Tivoli (56533 inhabitants)
64 Km NE of Guidonia Montecelio (88673 inhabitants)
69 Km SE of Foligno (57155 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
80 Km W of Chieti (51815 inhabitants)
83 Km W of Pescara (121014 inhabitants)
87 Km NE of Roma (2864731 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
93 Km NE of Velletri (53303 inhabitants)
98 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 2021-02-26
23:36:38
42.46 13.21 11 2021-02-26
23:46:41
Sala Sismica INGV-Roma 87522041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-26 23:36:38 ± 0.07
Latitude 42.46 ± 0.00
Longitude 13.21 ± 0.01
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87522041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 457
Semi-minor axis of confidence ellipse (meter) 365
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 460
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.58456
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 87522041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-26 23:46:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MF5.EHZ. 2021-02-26T23:36:50.58 0.6 positive manual P 19 0.5612 50 0.6 42
IV.TERO.HHZ. 2021-02-26T23:36:50.86 0.3 undecidable manual S 60 0.3354 50 -0.53 61
IV.FDMO.HHZ. 2021-02-26T23:36:50.45 0.6 undecidable manual P 351 0.5846 50 0.07 46
IV.MMO1.EHZ. 2021-02-26T23:36:48.07 1.0 undecidable manual P 11 0.4497 50 0 23
IV.MC2.EHZ. 2021-02-26T23:36:48.14 0.1 undecidable manual P 358 0.4533 50 0 93
IV.FIAM.HHZ. 2021-02-26T23:36:47.22 0.3 undecidable manual S 199 0.2014 50 -0.19 70
IV.SMA1.EHZ. 2021-02-26T23:36:47.43 0.3 undecidable manual S 29 0.197 50 0.16 75
IV.FAGN.HHZ. 2021-02-26T23:36:47.08 0.6 positive manual P 124 0.3381 50 0.91 40
IV.NRCA.HHZ. 2021-02-26T23:36:46.74 0.1 undecidable manual P 350 0.3813 50 -0.16 91
IV.LNSS.HHZ. 2021-02-26T23:36:46.91 0.3 undecidable manual S 320 0.1898 50 -0.17 72
IV.ARRO.EHZ. 2021-02-26T23:36:46.27 0.6 undecidable manual P 291 0.3471 50 -0.04 47
MN.AQU.HNN. 2021-02-26T23:36:46.66 0.6 undecidable manual S 125 0.179 50 -0.11 49
IV.CAMP.HHE. 2021-02-26T23:36:46.22 0.3 undecidable manual S 62 0.1682 120 -0.17 73
IV.GAVE.EHZ. 2021-02-26T23:36:46.13 1.0 positive manual P 316 0.3283 50 0.14 25
IV.TERO.HHZ. 2021-02-26T23:36:45.96 0.3 positive manual P 60 0.3354 50 -0.16 69
IV.SMA1.EHZ. 2021-02-26T23:36:43.90 0.3 negative manual P 29 0.197 50 0.15 75
IV.CAMP.HHE. 2021-02-26T23:36:43.25 0.3 undecidable manual P 62 0.1682 120 0.02 75
IV.RM33.EHZ. 2021-02-26T23:36:43.14 0.3 undecidable manual S 6 0.0513 152 0 77
IV.FIAM.HHZ. 2021-02-26T23:36:43.92 0.6 negative manual P 199 0.2014 50 0.1 50
IV.LNSS.HHZ. 2021-02-26T23:36:43.68 0.1 positive manual P 320 0.1898 50 0.05 100
MN.AQU.HNN. 2021-02-26T23:36:43.52 0.3 undecidable manual P 125 0.179 50 0.08 76
IV.RM33.EHZ. 2021-02-26T23:36:41.61 0.1 undecidable manual P 6 0.0513 152 0.25 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:1.6 0.0005905 0.66 AML other m 2021-02-26T23:36:43.64
IV.RM33.HNN. ML:1.6 0.00064 0.66 AML other m 2021-02-26T23:36:43.64
IV.RM33.HNE. ML:1.6 0.00057 0.3 AML other m 2021-02-26T23:36:43.38
IV.RM33.EHE. ML:1.6 0.0006115 0.3 AML other m 2021-02-26T23:36:43.39
IV.LNSS.HHE. ML:1.4 0.000154 0.2 AML other m 2021-02-26T23:36:47.32
IV.LNSS.HHN. ML:1.4 0.000154 0.5 AML other m 2021-02-26T23:36:47.00
IV.FIAM.HHN. ML:0.7 2.775E-5 0.8 AML other m 2021-02-26T23:36:47.10
IV.SMA1.EHN. ML:1.3 0.000133 0.3 AML other m 2021-02-26T23:36:47.71
IV.SMA1.EHE. ML:1.2 0.000116 0.52 AML other m 2021-02-26T23:36:47.75
IV.FIAM.HHE. ML:0.6 2.425E-5 0.58 AML other m 2021-02-26T23:36:47.82
IV.TERO.HHE. ML:1.1 4.43E-5 0.8 AML other m 2021-02-26T23:36:51.73
IV.TERO.HHN. ML:1.2 6.435E-5 0.56 AML other m 2021-02-26T23:36:52.73
IV.NRCA.HHE. ML:1.5 0.0001075 0.14 AML other m 2021-02-26T23:36:52.90
IV.NRCA.HHN. ML:1.3 5.95E-5 0.1 AML other m 2021-02-26T23:36:53.78
IV.FAGN.HHN. ML:1.2 5.94E-5 1.56 AML other m 2021-02-26T23:36:55.01
IV.FAGN.HHE. ML:1.3 7.735E-5 1.66 AML other m 2021-02-26T23:36:57.95
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