Earthquake with magnitude of ML 1.9 on date 28-12-2020 and time 21:09:46 (UTC) in region 6 km SE Capitignano (AQ)

A magnitude ML 1.9 earthquake occured in region: 6 km SE Capitignano (AQ), on

  • 28-12-2020 21:09:46 (UTC)
  • 28-12-2020 22:09:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.486, 13.363 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Capitignano AQ 6 665 665
Barete AQ 8 737 1402
Pizzoli AQ 8 4326 5728
Campotosto AQ 8 542 6270
Montereale AQ 11 2581 8851
Cagnano Amiterno AQ 12 1369 10220
Crognaleto TE 12 1297 11517
L'Aquila AQ 15 69753 81270
Scoppito AQ 15 3727 84997
Fano Adriano TE 16 296 85293
Pietracamela TE 16 271 85564
Amatrice RI 17 2657 88221
Borbona RI 19 617 88838
Cortino TE 19 656 89494

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km N of L'Aquila (69753 inhabitants)
34 Km SW of Teramo (54892 inhabitants)
59 Km E of Terni (111501 inhabitants)
65 Km W of Montesilvano (53738 inhabitants)
68 Km W of Chieti (51815 inhabitants)
70 Km W of Pescara (121014 inhabitants)
74 Km NE of Tivoli (56533 inhabitants)
75 Km SE of Foligno (57155 inhabitants)
75 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km NE of Roma (2864731 inhabitants)
Recent and historical seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
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
Bulletin
Rev1000
ML 1.9 2020-12-28
21:09:46
42.4858 13.3627 9 2021-02-26
14:56:15
Bollettino Sismico Italiano INGV 86355191
Reviewed
Rev100
ML 2.0 2020-12-28
21:09:46
42.4907 13.3625 8 2020-12-28
21:21:53
Sala Sismica INGV-Roma 85810341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-28 21:09:46 ± 0.08
Latitude 42.4858 ± 0.0036
Longitude 13.3627 ± 0.0073
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86355191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 602
Semi-minor axis of confidence ellipse (meter) 199
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) 600
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.06025
Epicentral distance of station farthest from the epicenter (degree) 0.61783
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 86355191
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-18 17:44:40

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 85810341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-28 21:21:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CESI.HHZ. 2020-12-28T21:10:08.07 0.3 undecidable manual S 327 0.6178 50 0.54 62
IV.CSP1.EHZ. 2020-12-28T21:10:07.92 0.3 undecidable manual S 349 0.6169 50 0.43 64
IV.MC2.EHZ. 2020-12-28T21:10:02.73 0.1 undecidable manual S 343 0.4443 50 0.35 90
IV.PTQR.HHZ. 2020-12-28T21:10:02.94 0.3 undecidable manual S 177 0.4641 50 -0.04 72
IV.VCEL.EHZ. 2020-12-28T21:10:01.01 0.1 undecidable manual S 104 0.3642 50 1 72
IV.T0110.HHZ. 2020-12-28T21:10:01.73 0.1 undecidable manual S 130 0.3984 50 0.69 81
IV.MMO1.EHZ. 2020-12-28T21:10:01.12 0.3 undecidable manual S 356 0.4146 50 -0.37 68
IV.NRCA.HHZ. 2020-12-28T21:10:00.42 0.1 undecidable manual S 332 0.393 50 -0.43 89
IV.CESI.HHZ. 2020-12-28T21:09:58.41 1.0 undecidable manual P 327 0.6178 50 -0.11 23
IV.CSP1.EHZ. 2020-12-28T21:09:58.13 0.3 undecidable manual P 349 0.6169 50 -0.36 65
IV.FIAM.HHZ. 2020-12-28T21:09:57.22 0.3 undecidable manual S 220 0.2833 105 -0.28 71
IV.MC2.EHZ. 2020-12-28T21:09:55.25 0.1 undecidable manual P 343 0.4443 50 -0.29 91
IV.PTQR.HHZ. 2020-12-28T21:09:55.60 0.3 undecidable manual P 177 0.4641 50 -0.28 68
IV.MMO1.EHZ. 2020-12-28T21:09:54.58 0.1 undecidable manual P 356 0.4146 50 -0.45 89
IV.NRCA.HHZ. 2020-12-28T21:09:54.29 0.1 positive manual P 332 0.393 50 -0.37 91
IV.GAVE.EHZ. 2020-12-28T21:09:54.74 1.0 undecidable manual P 301 0.402 50 -0.07 24
IV.TERO.HHZ. 2020-12-28T21:09:54.71 0.1 undecidable manual S 52 0.2239 109 -0.62 87
IV.T0110.HHZ. 2020-12-28T21:09:54.56 0.1 undecidable manual P 130 0.3984 50 -0.2 94
IV.T1299.EHZ. 2020-12-28T21:09:53.51 0.6 undecidable manual S 338 0.1601 116 0.49 46
IV.VCEL.EHZ. 2020-12-28T21:09:53.98 0.6 undecidable manual P 104 0.3642 50 -0.19 47
MN.AQU.HNE. 2020-12-28T21:09:52.38 0.3 undecidable manual S 167 0.1349 120 0.19 74
IV.LNSS.HHZ. 2020-12-28T21:09:52.28 0.6 undecidable manual P 296 0.2644 106 -0.04 50
IV.GIGS.HHN. 2020-12-28T21:09:52.51 0.1 undecidable manual S 102 0.1583 116 -0.47 93
IV.FIAM.HHZ. 2020-12-28T21:09:52.58 0.3 undecidable manual P 220 0.2833 105 -0.14 73
IV.SMA1.EHZ. 2020-12-28T21:09:52.94 0.1 undecidable manual S 352 0.1457 118 0.39 95
IV.TERO.HHZ. 2020-12-28T21:09:51.11 0.1 positive manual P 52 0.2239 109 -0.36 94
IV.MTRA.HNZ. 2020-12-28T21:09:51.77 1.0 undecidable manual P 5 0.2716 106 -0.71 21
IV.SMA1.EHZ. 2020-12-28T21:09:50.07 0.1 positive manual P 352 0.1457 118 0.2 98
IV.T1299.EHZ. 2020-12-28T21:09:50.46 0.1 positive manual P 338 0.1601 116 0.32 96
IV.CAMP.HHZ. 2020-12-28T21:09:50.45 0.6 undecidable manual S 34 0.0603 142 0.49 47
MN.AQU.HNE. 2020-12-28T21:09:49.83 0.1 undecidable manual P 167 0.1349 120 0.17 99
IV.GIGS.HHN. 2020-12-28T21:09:49.99 0.1 undecidable manual P 102 0.1583 116 -0.12 100
IV.CAMP.HHZ. 2020-12-28T21:09:48.83 0.1 positive manual P 34 0.0603 142 0.46 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAMP.HHE. ML:1.5 0.000541 0.42 AML other m 2020-12-28T21:09:51.40
IV.CAMP.HHN. ML:1.6 0.000745 0.54 AML other m 2020-12-28T21:09:51.39
IV.SMA1.EHE. ML:1.8 0.0005525 0.16 AML other m 2020-12-28T21:09:54.09
IV.SMA1.EHN. ML:1.7 0.0004725 0.54 AML other m 2020-12-28T21:09:54.29
IV.TERO.HHE. ML:2 0.000549 0.08 AML other m 2020-12-28T21:09:55.29
IV.TERO.HNE. ML:2 0.000617 0.06 AML other m 2020-12-28T21:09:55.26
IV.TERO.HHN. ML:2 0.000561 0.1 AML other m 2020-12-28T21:09:55.29
IV.TERO.HNN. ML:1.9 0.000516 1.54 AML other m 2020-12-28T21:09:56.77
IV.NRCA.HHE. ML:2.5 0.00094 0.12 AML other m 2020-12-28T21:10:00.77
IV.NRCA.HNE. ML:2.4 0.000895 0.14 AML other m 2020-12-28T21:10:00.78
IV.NRCA.HHN. ML:2.2 0.000484 0.48 AML other m 2020-12-28T21:10:00.56
IV.NRCA.HNN. ML:2.2 0.000543 0.98 AML other m 2020-12-28T21:10:01.57
IV.VCEL.EHN. ML:2 0.00030298915 0.9728 AML other m 2020-12-28T21:10:01.31
IV.VCEL.EHE. ML:2.1 0.00043996715 1.9584 AML other m 2020-12-28T21:10:01.22
IV.T0110.HHE. ML:1.9 0.00022317195 2.0992 AML other m 2020-12-28T21:10:02.76
IV.T0110.HHN. ML:2 0.00029145085 1.4208 AML other m 2020-12-28T21:10:02.49
IV.CESI.HHE. ML:1.2 3.23956885E-5 0.1792 AML other m 2020-12-28T21:10:08.70
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download