Earthquake with magnitude of ML 2.1 on date 10-08-2018 and time 08:26:46 (UTC) in region 4 km SW L'Aquila (AQ)

A magnitude ML 2.1 earthquake occured in region: 4 km SW L'Aquila (AQ), on

  • 10-08-2018 08:26:46 (UTC)
  • 10-08-2018 10:26:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.32, 13.38 at 10 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
L'Aquila AQ 4 69753 69753
Lucoli AQ 4 1011 70764
Tornimparte AQ 7 3187 73951
Ocre AQ 9 1167 75118
Fossa AQ 9 721 75839
Scoppito AQ 12 3727 79566
Sant'Eusanio Forconese AQ 12 394 79960
Rocca di Cambio AQ 13 533 80493
Poggio Picenze AQ 13 1136 81629
Villa Sant'Angelo AQ 14 424 82053
Pizzoli AQ 15 4326 86379
San Demetrio ne' Vestini AQ 15 1854 88233
Rocca di Mezzo AQ 17 1526 89759
Barete AQ 17 737 90496
Barisciano AQ 17 1828 92324
Fagnano Alto AQ 18 418 92742
Borgorose RI 18 4591 97333
Prata d'Ansidonia AQ 19 496 97829

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km SW of L'Aquila (69753 inhabitants)
47 Km SW of Teramo (54892 inhabitants)
62 Km NE of Tivoli (56533 inhabitants)
64 Km NE of Guidonia Montecelio (88673 inhabitants)
65 Km W of Chieti (51815 inhabitants)
66 Km E of Terni (111501 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
71 Km W of Pescara (121014 inhabitants)
86 Km NE of Velletri (53303 inhabitants)
88 Km NE of Roma (2864731 inhabitants)
90 Km SE of Foligno (57155 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 last three days (72 hours)

Earthquakes of the last three days (72 hours) *

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 last 90 days

Earthquakes of the last 90 days *

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 since 1985

Earthquakes since 1985 *

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 2014

Earthquakes since 1000 AD until 2014 *

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
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
Bulletin
Rev1000
ML 2.1 2018-08-10
08:26:46
42.32 13.38 10 2019-04-24
14:50:52
Bollettino Sismico Italiano INGV 59707471
Reviewed
Rev100
ML 2.1 2018-08-10
08:26:46
42.31 13.38 8 2018-08-10
08:39:50
Sala Sismica INGV-Roma 59582901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-10 08:26:46 ± 0.06
Latitude 42.32 ± 0.00
Longitude 13.38 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 59707471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 307
Semi-minor axis of confidence ellipse (meter) 241
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 53
Circular confidence region, given by single value of horizontal uncertainty (meter) 310
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 56
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.67269
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 33
Type of magnitude ML
Reference to an origin 59707471
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-08-13 13:52:37

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 59582901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-10 08:39:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SALB.HHZ. 2018-08-10T08:28:24.28 3.0 undecidable manual Sn 5.65 0
MN.CUC.HHZ. 2018-08-10T08:28:23.74 3.0 undecidable manual Sg 14.24 0
GU.CANO.HHZ. 2018-08-10T08:28:13.48 3.0 undecidable manual Sn -2.34 0
MN.TRI.HHZ. 2018-08-10T08:28:08.16 3.0 undecidable manual Sn -1.32 0
MN.PDG.HHZ. 2018-08-10T08:28:04.13 3.0 positive manual Pg 14.57 0
IV.NDIM.HHZ. 2018-08-10T08:27:56.51 3.0 undecidable manual Sn 2.44 0
IV.ZONE.HHZ. 2018-08-10T08:27:44.58 3.0 undecidable manual Pg 10.36 0
IV.CAPR.HNZ. 2018-08-10T08:27:43.89 3.0 undecidable manual Pg 10.27 0
IV.SBPO.HNZ. 2018-08-10T08:27:20.02 3.0 negative manual Pn -1.95 0
IV.MRB1.HHZ. 2018-08-10T08:27:13.23 3.0 positive manual Pn 1.43 0
IV.PTRJ.HHZ. 2018-08-10T08:27:11.61 3.0 undecidable manual Pg 5.44 0
IV.MF5.EHZ. 2018-08-10T08:27:09.12 0.6 undecidable manual S 5 0.6727 50 0.27 43
IV.LPEL.HHZ. 2018-08-10T08:27:08.54 0.3 undecidable manual S 114 0.6529 50 0.27 65
IV.MC2.EHZ. 2018-08-10T08:27:07.50 0.6 undecidable manual S 347 0.6106 50 0.5 42
IV.MAGO.HHZ. 2018-08-10T08:27:05.57 3.0 negative manual P 0.6 0
IV.NRCA.HHZ. 2018-08-10T08:27:05.48 0.3 undecidable manual S 339 0.5522 50 0.21 68
IV.INTR.HHZ. 2018-08-10T08:27:03.64 0.3 undecidable manual S 128 0.4937 50 0.08 70
IV.CERT.HHZ. 2018-08-10T08:27:02.50 0.6 undecidable manual S 219 0.4721 50 -0.4 44
IV.CERA.HHZ. 2018-08-10T08:27:02.16 3.0 undecidable manual P 2.12 0
IV.MTRA.EHE. 2018-08-10T08:27:01.31 0.3 undecidable manual S 2 0.4398 50 -0.63 62
IV.CSNT.HHZ. 2018-08-10T08:27:00.20 3.0 negative manual P -1.55 0
IV.LNSS.HHE. 2018-08-10T08:27:00.25 0.3 undecidable manual S 319 0.3795 50 0.07 72
IV.T1299.HNE. 2018-08-10T08:26:59.01 0.6 undecidable manual S 347 0.3247 50 0.46 45
IV.MF5.EHZ. 2018-08-10T08:26:59.22 0.1 undecidable manual P 5 0.6727 50 -0.02 91
IV.TERO.HHZ. 2018-08-10T08:26:59.13 0.3 undecidable manual S 28 0.3471 50 -0.07 72
IV.VCEL.EHZ. 2018-08-10T08:26:59.86 0.3 undecidable manual S 77 0.3489 50 0.61 63
IV.POFI.HNE. 2018-08-10T08:26:59.19 0.1 undecidable manual P 158 0.6484 50 0.37 85
IV.T0110.HHZ. 2018-08-10T08:26:58.42 0.3 undecidable manual S 107 0.3058 50 0.44 68
IV.SMA1.EHN. 2018-08-10T08:26:58.48 0.6 undecidable manual S 354 0.3148 50 0.23 47
IV.LPEL.HHZ. 2018-08-10T08:26:58.91 0.1 undecidable manual P 114 0.6529 50 0.01 92
IV.PTQR.HHZ. 2018-08-10T08:26:57.27 0.3 undecidable manual S 177 0.2959 50 -0.41 68
IV.MC2.EHZ. 2018-08-10T08:26:57.92 0.1 positive manual P 347 0.6106 50 -0.25 88
IV.RCAV.EHZ. 2018-08-10T08:26:57.11 0.6 undecidable manual P 215 0.5702 50 -0.37 43
IV.NARO.HHZ. 2018-08-10T08:26:57.72 3.0 undecidable manual P -0.79 0
IV.RM33.EHN. 2018-08-10T08:26:56.03 0.3 undecidable manual S 328 0.2275 111 0.57 66
IV.NRCA.HHZ. 2018-08-10T08:26:56.91 0.1 undecidable manual P 339 0.5522 50 -0.26 89
IV.INTR.HHZ. 2018-08-10T08:26:56.08 0.1 undecidable manual P 128 0.4937 50 -0.1 93
IV.VVLD.HHZ. 2018-08-10T08:26:55.76 0.3 undecidable manual P 158 0.482 50 -0.22 68
IV.MTRA.EHE. 2018-08-10T08:26:55.02 0.1 undecidable manual P 2 0.4398 50 -0.23 92
IV.CERT.HHZ. 2018-08-10T08:26:55.76 0.1 positive manual P 219 0.4721 50 -0.04 95
IV.LNSS.HHE. 2018-08-10T08:26:54.61 0.1 undecidable manual P 319 0.3795 50 0.38 90
IV.GIGS.HHZ. 2018-08-10T08:26:54.04 0.6 undecidable manual S 46 0.197 113 -0.32 47
IV.FIAM.HHZ. 2018-08-10T08:26:54.57 0.3 undecidable manual S 256 0.2005 113 0.07 75
IV.CAMP.HHZ. 2018-08-10T08:26:54.76 0.6 undecidable manual S 6 0.2194 111 -0.41 46
IV.FAGN.HHZ. 2018-08-10T08:26:53.03 0.3 undecidable manual S 109 0.1592 118 -0.02 76
IV.SMA1.EHN. 2018-08-10T08:26:53.03 0.1 undecidable manual P 354 0.3148 50 -0.09 97
IV.T1299.HNE. 2018-08-10T08:26:53.41 0.1 undecidable manual P 347 0.3247 50 0.12 96
IV.TERO.HHZ. 2018-08-10T08:26:53.03 0.1 undecidable manual P 28 0.3471 50 -0.64 84
IV.VCEL.EHZ. 2018-08-10T08:26:53.62 0.1 undecidable manual P 77 0.3489 50 -0.08 96
IV.T0110.HHZ. 2018-08-10T08:26:52.88 0.1 undecidable manual P 107 0.3058 50 -0.08 97
IV.PTQR.HHZ. 2018-08-10T08:26:52.67 0.3 undecidable manual P 177 0.2959 50 -0.12 72
IV.CAMP.HHZ. 2018-08-10T08:26:51.20 0.1 positive manual P 6 0.2194 111 -0.14 98
IV.RM33.EHN. 2018-08-10T08:26:51.49 0.1 undecidable manual P 328 0.2275 111 -0.01 100
IV.FIAM.HHZ. 2018-08-10T08:26:51.21 0.1 positive manual P 256 0.2005 113 0.26 96
IV.FAGN.HHZ. 2018-08-10T08:26:50.48 0.1 positive manual P 109 0.1592 118 0.37 94
IV.GIGS.HHZ. 2018-08-10T08:26:50.70 0.1 positive manual P 46 0.197 113 -0.17 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HHE. ML:2.3 0.001435 1.64 AML other m 2018-08-10T08:26:54.01
IV.FAGN.HHE. ML:2.8 0.0048 0.36 AML other m 2018-08-10T08:26:55.54
IV.GIGS.HHE. ML:1.6 0.000271 0.34 AML other m 2018-08-10T08:26:55.65
IV.GIGS.HHN. ML:1.6 0.0002475 1.56 AML other m 2018-08-10T08:26:56.79
IV.FAGN.HHN. ML:2.8 0.004995 0.4 AML other m 2018-08-10T08:26:56.15
IV.CAMP.HHN. ML:2.1 0.0008865 0.82 AML other m 2018-08-10T08:26:56.51
IV.FIAM.HHN. ML:2.2 0.001215 0.74 AML other m 2018-08-10T08:26:57.45
IV.RM33.HNN. ML:2.2 0.0010425 0.5 AML other m 2018-08-10T08:26:57.28
IV.RM33.EHN. ML:2.2 0.0010015 0.5 AML other m 2018-08-10T08:26:57.28
IV.RM33.EHE. ML:2.2 0.00106 0.42 AML other m 2018-08-10T08:26:57.33
IV.RM33.HNE. ML:2.2 0.001043 0.42 AML other m 2018-08-10T08:26:57.33
IV.PTQR.HHE. ML:1.8 0.000299 0.2 AML other m 2018-08-10T08:26:58.30
IV.PTQR.HHN. ML:1.7 0.000225 0.66 AML other m 2018-08-10T08:26:58.03
IV.CAMP.HHE. ML:1.9 0.000502 0.42 AML other m 2018-08-10T08:26:59.41
IV.T0110.HHN. ML:2.1 0.0005585 0.32 AML other m 2018-08-10T08:26:59.88
IV.TERO.HHE. ML:2.2 0.0005885 1.24 AML other m 2018-08-10T08:27:00.27
IV.TERO.HHN. ML:2.2 0.000648 0.66 AML other m 2018-08-10T08:27:00.60
IV.T0110.HHE. ML:2.1 0.000585 0.56 AML other m 2018-08-10T08:27:02.44
IV.VCEL.EHE. ML:2.3 0.0006935 0.56 AML other m 2018-08-10T08:27:02.56
IV.VCEL.EHN. ML:2.2 0.0005985 0.28 AML other m 2018-08-10T08:27:02.56
IV.CERT.HHE. ML:2 0.0002515 0.4 AML other m 2018-08-10T08:27:06.52
IV.CERT.HHN. ML:1.8 0.0001625 1.44 AML other m 2018-08-10T08:27:07.13
IV.NRCA.HHE. ML:2.3 0.000398 0.12 AML other m 2018-08-10T08:27:07.14
IV.NRCA.HHN. ML:2.1 0.0002625 0.12 AML other m 2018-08-10T08:27:07.27
IV.MAGO.HHN. ML:2.6 7.56E-5 0.46 AML other m 2018-08-10T08:27:08.49
IV.INTR.HHN. ML:2 0.000218 0.5 AML other m 2018-08-10T08:27:10.85
IV.LPEL.HHN. ML:2 0.0001475 0.18 AML other m 2018-08-10T08:27:10.98
IV.MAGO.HHE. ML:2.4 4.72E-5 1.3 AML other m 2018-08-10T08:27:11.91
IV.LPEL.HHE. ML:2 0.00016 0.44 AML other m 2018-08-10T08:27:11.35
IV.INTR.HHE. ML:1.6 9.235E-5 0.98 AML other m 2018-08-10T08:27:11.39
IV.MF5.EHN. ML:2.1 0.00019 0.66 AML other m 2018-08-10T08:27:11.95
IV.MF5.EHE. ML:2.2 0.0002275 1.62 AML other m 2018-08-10T08:27:11.15
IV.OFFI.HHE. ML:2.6 0.0006725 1.52 AML other m 2018-08-10T08:27:13.78
IV.OFFI.HHN. ML:2.8 0.000949 0.52 AML other m 2018-08-10T08:27:16.28
IV.CSP1.EHE. ML:0 0.00014225 0.3 AML other m 2018-08-10T08:27:16.60
IV.CSP1.EHN. ML:0 0.0001385 0.36 AML other m 2018-08-10T08:27:17.82
IV.FDMO.HHE. ML:0 0.000349 1.82 AML other m 2018-08-10T08:27:19.94
IV.FDMO.HHN. ML:0 0.000312 1.84 AML other m 2018-08-10T08:27:19.04
IV.CERA.HHN. ML:1.9 8.445E-5 0.42 AML other m 2018-08-10T08:27:23.71
IV.CERA.HHE. ML:1.8 6.345E-5 1.42 AML other m 2018-08-10T08:27:25.92
IV.EL6.EHE. ML:2.2 0.0001217 0.58 AML other m 2018-08-10T08:27:26.69
IV.EL6.EHN. ML:2.2 0.00011405 1.08 AML other m 2018-08-10T08:27:31.64
GU.CANO.HHN. ML:3.6 0.0001465 0.1 AML other m 2018-08-10T08:28:15.18
GU.CANO.HHE. ML:3.5 0.0001275 1.18 AML other m 2018-08-10T08:28:19.16
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

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 full SEED format Download