Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 01-03-2021 and time 23:04:01 (Italy) in region 5 km SE Capitignano (AQ)

A magnitude ML 0.8 earthquake occured in region: 5 km SE Capitignano (AQ), on

  • 01-03-2021 22:04:01 (UTC)
  • 01-03-2021 23:04:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.49, 13.35 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Capitignano AQ 5 665 665
Barete AQ 7 737 1402
Pizzoli AQ 7 4326 5728
Campotosto AQ 8 542 6270
Montereale AQ 9 2581 8851
Cagnano Amiterno AQ 11 1369 10220
Crognaleto TE 13 1297 11517
Scoppito AQ 15 3727 15244
L'Aquila AQ 16 69753 84997
Amatrice RI 16 2657 87654
Fano Adriano TE 17 296 87950
Pietracamela TE 17 271 88221
Borbona RI 18 617 88838
Cortino TE 20 656 89494

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km N of L'Aquila (69753 inhabitants)
35 Km SW of Teramo (54892 inhabitants)
58 Km E of Terni (111501 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
69 Km W of Chieti (51815 inhabitants)
71 Km W of Pescara (121014 inhabitants)
74 Km SE of Foligno (57155 inhabitants)
74 Km NE of Tivoli (56533 inhabitants)
75 Km NE of Guidonia Montecelio (88673 inhabitants)
97 Km NE of Roma (2864731 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 0.8 2021-03-01
22:04:01		 42.49 13.35 12 2021-03-01
22:28:14		 Sala Sismica INGV-Roma 87611111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-01 22:04:01 ± 0.08
Latitude 42.49 ± 0.00
Longitude 13.35 ± 0.00
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 87611111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 389
Semi-minor axis of confidence ellipse (meter) 127
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 209
Circular confidence region, given by single value of horizontal uncertainty (meter) 390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.06385
Epicentral distance of station farthest from the epicenter (degree) 0.38311
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 87611111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-01 22:28:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2021-03-01T22:04:14.76 0.6 undecidable manual S 334 0.3831 92 -0.11 47
IV.FIAM.HHE. 2021-03-01T22:04:11.76 0.3 undecidable manual S 218 0.2797 93 -0.04 74
IV.LNSS.HNN. 2021-03-01T22:04:10.58 0.3 undecidable manual S 297 0.2527 94 -0.41 69
IV.TERO.HHZ. 2021-03-01T22:04:10.14 0.3 undecidable manual S 55 0.2302 95 -0.19 72
IV.NRCA.HHZ. 2021-03-01T22:04:09.00 0.1 undecidable manual P 334 0.3831 92 -0.02 97
IV.GIGS.HHE. 2021-03-01T22:04:08.21 0.3 undecidable manual S 103 0.17 99 -0.35 71
MN.AQU.HHE. 2021-03-01T22:04:07.99 0.6 undecidable manual S 163 0.143 105 0.23 48
IV.SMA1.EHZ. 2021-03-01T22:04:07.78 0.3 undecidable manual S 356 0.1403 106 0.08 76
IV.T1299.HNE. 2021-03-01T22:04:07.91 0.3 undecidable manual S 341 0.152 103 -0.12 74
IV.FIAM.HHE. 2021-03-01T22:04:07.31 0.6 undecidable manual P 218 0.2797 93 0.06 49
IV.TERO.HHZ. 2021-03-01T22:04:06.41 0.1 undecidable manual P 55 0.2302 95 0 100
IV.RM33.EHZ. 2021-03-01T22:04:06.36 0.3 undecidable manual S 281 0.0998 122 -0.25 74
IV.LNSS.HNN. 2021-03-01T22:04:06.83 0.1 undecidable manual P 297 0.2527 94 0.04 99
IV.T1299.HNE. 2021-03-01T22:04:05.38 0.1 undecidable manual P 341 0.152 103 0.31 96
IV.SMA1.EHZ. 2021-03-01T22:04:05.03 0.1 undecidable manual P 356 0.1403 106 0.15 100
IV.GIGS.HHE. 2021-03-01T22:04:05.50 0.1 undecidable manual P 103 0.17 99 0.12 99
IV.CAMP.HHE. 2021-03-01T22:04:05.79 0.3 undecidable manual S 45 0.0639 140 -0.01 78
IV.CAMP.HHE. 2021-03-01T22:04:04.11 0.1 negative manual P 45 0.0639 140 0.32 97
IV.RM33.EHZ. 2021-03-01T22:04:04.41 0.1 positive manual P 281 0.0998 122 0.15 100
MN.AQU.HHE. 2021-03-01T22:04:04.54 0.3 undecidable manual P 163 0.143 105 -0.38 71
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:0.8 7.22E-5 0.26 AML other m 2021-03-01T22:04:06.58
IV.RM33.EHN. ML:0.8 7.02E-5 0.64 AML other m 2021-03-01T22:04:07.59
IV.SMA1.EHN. ML:1 8.165E-5 0.54 AML other m 2021-03-01T22:04:08.52
IV.SMA1.EHE. ML:0.9 7.345E-5 0.58 AML other m 2021-03-01T22:04:08.37
IV.NRCA.HHN. ML:0.8 1.85E-5 1.5 AML other m 2021-03-01T22:04:14.97
IV.NRCA.HHE. ML:1 3.655E-5 0.14 AML other m 2021-03-01T22:04:15.11
IV.TERO.HHE. ML:0.4 1.6538065E-5 0.0768 AML other m 2021-03-01T22:04:11.58
IV.TERO.HHN. ML:0.6 2.1523685E-5 0.7808 AML other m 2021-03-01T22:04:10.23
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