Earthquake with magnitude of ML 2.0 on date 24-02-2021 and time 15:59:29 (Italy) in region 6 km W Accumoli (RI)

A magnitude ML 2.0 earthquake occured in region: 6 km W Accumoli (RI), on

  • 24-02-2021 14:59:29 (UTC)
  • 24-02-2021 15:59:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.686, 13.175 at 13 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
Accumoli RI 6 667 667
Cittareale RI 8 482 1149
Amatrice RI 11 2657 3806
Norcia PG 14 4957 8763
Cascia PG 14 3217 11980
Arquata del Tronto AP 14 1178 13158
Monteleone di Spoleto PG 19 599 13757
Montereale AQ 19 2581 16338
Posta RI 19 694 17032
Borbona RI 20 617 17649
Poggiodomo PG 20 117 17766

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NW of L'Aquila (69753 inhabitants)
43 Km W of Teramo (54892 inhabitants)
45 Km E of Terni (111501 inhabitants)
49 Km SE of Foligno (57155 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
85 Km NE of Guidonia Montecelio (88673 inhabitants)
86 Km NE of Tivoli (56533 inhabitants)
89 Km W of Pescara (121014 inhabitants)
90 Km W of Chieti (51815 inhabitants)
93 Km E of Viterbo (67173 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 2.0 2021-02-24
14:59:29
42.6862 13.1752 13 2021-07-12
16:55:17
Bollettino Sismico Italiano INGV 92261851
Reviewed
Rev100
ML 2.0 2021-02-24
14:59:29
42.6952 13.1782 12 2021-02-24
15:32:06
Sala Sismica INGV-Roma 87454641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-24 14:59:29 ± 0.08
Latitude 42.6862 ± 0.0036
Longitude 13.1752 ± 0.0049
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 92261851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 438
Semi-minor axis of confidence ellipse (meter) 174
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
Circular confidence region, given by single value of horizontal uncertainty (meter) 440
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.64481
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 92261851
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-05 10:23:05

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 87454641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-24 15:32:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MILN.HNZ. 2021-02-24T15:01:14.33 3.0 undecidable manual Sn -0.93 0
IV.TREG.HNZ. 2021-02-24T15:00:59.80 3.0 undecidable manual Sn 1.63 0
IV.PTRP.HHZ. 2021-02-24T15:00:48.61 3.0 undecidable manual Sg 2.38 0
IV.PZUN.HHZ. 2021-02-24T15:00:43.69 3.0 undecidable manual Sg 3.05 0
FR.SAOF.HHZ.00 2021-02-24T15:00:41.28 3.0 negative manual Pg 13.13 0
SL.KOGS.BHZ. 2021-02-24T15:00:41.77 3.0 undecidable manual Pn 7.46 0
IV.MONC.HHZ. 2021-02-24T15:00:39.43 3.0 undecidable manual Pn 7.51 0
RF.GEPF.HHZ. 2021-02-24T15:00:33.38 3.0 positive manual Pg 10.04 0
IV.TREG.HNZ. 2021-02-24T15:00:26.89 3.0 positive manual Pg 10.38 0
IV.LADO.EHZ. 2021-02-24T15:00:22.84 3.0 negative manual Pn -5.63 0
IV.NDIM.HHZ. 2021-02-24T15:00:17.55 3.0 positive manual Pg 7.68 0
MN.TRI.HHZ. 2021-02-24T15:00:14.47 3.0 negative manual Pn -1.76 0
IV.PTRJ.HHZ. 2021-02-24T15:00:11.54 3.0 undecidable manual S 0.29 0
IV.MOMA.HHZ. 2021-02-24T14:59:46.94 0.6 undecidable manual S 285 0.4596 93 0.92 36
IV.GUMA.HNN. 2021-02-24T14:59:45.02 0.3 undecidable manual S 17 0.3939 94 0.93 54
IV.CSP1.EHZ. 2021-02-24T14:59:44.46 0.6 undecidable manual S 3 0.4056 94 0.02 48
IV.CESI.HHE. 2021-02-24T14:59:43.33 0.6 undecidable manual S 328 0.375 94 -0.2 46
IV.EL6.EHZ. 2021-02-24T14:59:42.36 0.3 undecidable manual P 355 0.6448 92 -0.04 68
IT.MTCL.HGZ. 2021-02-24T14:59:42.06 0.6 undecidable manual S 337 0.3336 95 -0.24 46
IV.T0110.HHZ. 2021-02-24T14:59:42.32 0.3 undecidable manual P 136 0.6367 92 0.07 67
IV.TERO.HHZ. 2021-02-24T14:59:41.56 0.6 undecidable manual S 101 0.3211 96 -0.39 45
IV.FEMA.HNE. 2021-02-24T14:59:40.97 0.6 undecidable manual S 342 0.2905 97 -0.07 49
IV.MNTT.EHZ. 2021-02-24T14:59:40.62 0.3 undecidable manual P 39 0.4856 93 0.95 52
IV.MMO1.EHZ. 2021-02-24T14:59:39.33 0.6 undecidable manual S 28 0.2401 99 -0.23 47
IV.MOMA.HHZ. 2021-02-24T14:59:39.44 0.3 undecidable manual P 285 0.4596 93 0.22 68
IV.MC2.EHZ. 2021-02-24T14:59:39.10 0.3 undecidable manual S 3 0.2257 100 -0.02 74
IV.CAMP.HHZ. 2021-02-24T14:59:39.10 0.3 undecidable manual S 131 0.2284 100 -0.11 73
IV.GAVE.EHZ. 2021-02-24T14:59:38.52 0.6 undecidable manual S 272 0.2068 102 -0.06 49
IV.GUMA.HNN. 2021-02-24T14:59:38.35 0.3 undecidable manual P 17 0.3939 94 0.24 68
IV.CSP1.EHZ. 2021-02-24T14:59:38.24 0.1 undecidable manual P 3 0.4056 94 -0.07 95
IV.RM33.EHZ. 2021-02-24T14:59:37.83 0.6 undecidable manual S 171 0.1799 106 0.03 50
IV.MTRA.EHZ. 2021-02-24T14:59:37.18 0.6 undecidable manual S 66 0.1772 106 -0.56 44
IV.CESI.HHE. 2021-02-24T14:59:37.75 0.3 undecidable manual P 328 0.375 94 -0.04 72
IV.ARRO.EHZ. 2021-02-24T14:59:36.78 0.1 undecidable manual P 251 0.3193 96 -0.06 96
IV.LNSS.HHZ. 2021-02-24T14:59:36.50 0.3 undecidable manual S 230 0.1295 118 0.08 76
IV.NRCA.HNZ. 2021-02-24T14:59:36.38 0.6 undecidable manual S 343 0.1538 111 -0.7 42
IV.SMA1.EHZ. 2021-02-24T14:59:36.38 0.6 undecidable manual S 115 0.1304 118 -0.07 50
IV.FEMA.HNE. 2021-02-24T14:59:36.21 0.3 undecidable manual P 342 0.2905 97 -0.14 72
IV.TERO.HHZ. 2021-02-24T14:59:36.55 0.3 undecidable manual P 101 0.3211 96 -0.32 69
IT.MTCL.HGZ. 2021-02-24T14:59:36.84 0.3 undecidable manual P 337 0.3336 95 -0.23 70
IV.MC2.EHZ. 2021-02-24T14:59:35.22 0.1 undecidable manual P 3 0.2257 100 -0.02 99
IV.CAMP.HHZ. 2021-02-24T14:59:35.33 0.1 undecidable manual P 131 0.2284 100 0.03 99
IV.MMO1.EHZ. 2021-02-24T14:59:35.38 0.1 undecidable manual P 28 0.2401 99 -0.12 97
IV.T1299.HNE. 2021-02-24T14:59:35.50 0.6 undecidable manual S 123 0.0944 131 -0.07 50
IV.SMA1.EHZ. 2021-02-24T14:59:34.02 0.1 undecidable manual P 115 0.1304 118 0.32 95
IV.MTRA.EHZ. 2021-02-24T14:59:34.29 0.1 undecidable manual P 66 0.1772 106 -0.15 98
IV.RM33.EHZ. 2021-02-24T14:59:34.56 0.1 undecidable manual P 171 0.1799 106 0.08 99
IV.GAVE.EHZ. 2021-02-24T14:59:34.84 0.1 undecidable manual P 272 0.2068 102 -0.09 98
IV.T1299.HNE. 2021-02-24T14:59:33.31 0.1 undecidable manual P 123 0.0944 131 0.12 100
IV.LNSS.HHZ. 2021-02-24T14:59:33.81 0.1 undecidable manual P 230 0.1295 118 0.12 99
IV.NRCA.HNZ. 2021-02-24T14:59:33.87 0.1 negative manual P 343 0.1538 111 -0.19 97
IV.VIVA.HHZ. 2021-02-24T14:59:30.64 3.0 positive manual P -4.81 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:0 0.0008188495 0.0896 AML other m 2021-02-24T14:59:37.15
IV.NRCA.HHN. ML:0 0.00178 0.12 AML other m 2021-02-24T14:59:36.48
IV.NRCA.HNN. ML:2.3 0.0015307125 0.128 AML other m 2021-02-24T14:59:36.48
IV.NRCA.HHE. ML:0 0.00256 0.38 AML other m 2021-02-24T14:59:36.81
IV.LNSS.HNE. ML:1.9 0.00068290435 0.2688 AML other m 2021-02-24T14:59:36.86
IV.NRCA.HNE. ML:2.5 0.002368034 0.0768 AML other m 2021-02-24T14:59:36.93
IV.SMA1.EHE. ML:0 0.00091229985 1.8208 AML other m 2021-02-24T14:59:36.99
IV.SMA1.EHN. ML:0 0.00089810025 1.6032 AML other m 2021-02-24T14:59:37.02
IV.MTRA.HNN. ML:0 0.000988 0.22 AML other m 2021-02-24T14:59:37.50
IV.MTRA.EHN. ML:0 0.0009715 0.22 AML other m 2021-02-24T14:59:37.50
IV.MTRA.EHE. ML:0 0.0015452845 1.68 AML other m 2021-02-24T14:59:37.13
IV.LNSS.HHN. ML:0 0.000773 1.68 AML other m 2021-02-24T14:59:38.03
IV.MTRA.HNE. ML:0 0.00153 1.68 AML other m 2021-02-24T14:59:37.14
IV.LNSS.HNN. ML:1.8 0.00062928835 1.8592 AML other m 2021-02-24T14:59:38.02
IV.RM33.HNN. ML:0 0.000464 1.54 AML other m 2021-02-24T14:59:38.04
IV.RM33.EHN. ML:0 0.0004195 1.54 AML other m 2021-02-24T14:59:38.04
IV.RM33.HNE. ML:0 0.0004505 1.08 AML other m 2021-02-24T14:59:38.39
IV.RM33.EHE. ML:0 0.000438 0.96 AML other m 2021-02-24T14:59:38.45
IV.GAVE.EHN. ML:0 0.0006655 1.14 AML other m 2021-02-24T14:59:39.74
IV.GAVE.HNN. ML:1.6 0.000213141265 0.2176 AML other m 2021-02-24T14:59:38.74
IV.GAVE.EHE. ML:0 0.000719 0.58 AML other m 2021-02-24T14:59:40.29
IV.GAVE.HNE. ML:2 0.00067767995 1.7952 AML other m 2021-02-24T14:59:40.90
IV.CAMP.HHN. ML:1.1 6.787603E-5 0.256 AML other m 2021-02-24T14:59:41.15
IV.CAMP.HHE. ML:0.9 3.8011905E-5 0.1792 AML other m 2021-02-24T14:59:41.20
IV.EL6.EHN. ML:1.6 5.8930522E-5 0.6912 AML other m 2021-02-24T14:59:54.10
IV.EL6.EHE. ML:1.6 6.353039E-5 0.2048 AML other m 2021-02-24T14:59:56.22
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