Earthquake with magnitude of ML 1.5 on date 27-05-2021 and time 00:00:11 (UTC) in region 2 km S Rocca di Mezzo (AQ)

A magnitude ML 1.5 earthquake occured in region: 2 km S Rocca di Mezzo (AQ), on

  • 27-05-2021 00:00:11 (UTC)
  • 27-05-2021 02:00:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.189, 13.521 at 14 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
Rocca di Mezzo AQ 2 1526 1526
Rocca di Cambio AQ 6 533 2059
Ovindoli AQ 6 1227 3286
Fagnano Alto AQ 9 418 3704
Fontecchio AQ 9 369 4073
Villa Sant'Angelo AQ 9 424 4497
Tione degli Abruzzi AQ 10 310 4807
Sant'Eusanio Forconese AQ 11 394 5201
Ocre AQ 11 1167 6368
San Demetrio ne' Vestini AQ 12 1854 8222
Celano AQ 12 11017 19239
Fossa AQ 12 721 19960
Prata d'Ansidonia AQ 12 496 20456
Aielli AQ 13 1475 21931
Secinaro AQ 14 359 22290
Massa d'Albe AQ 14 1476 23766
Caporciano AQ 14 230 23996
Poggio Picenze AQ 15 1136 25132
Cerchio AQ 15 1635 26767
San Pio delle Camere AQ 16 661 27428
Acciano AQ 16 327 27755
Gagliano Aterno AQ 16 254 28009
Barisciano AQ 17 1828 29837
Collarmele AQ 17 894 30731
Magliano de' Marsi AQ 17 3690 34421
Navelli AQ 18 554 34975
Carapelle Calvisio AQ 18 87 35062
Molina Aterno AQ 18 386 35448
Castelvecchio Subequo AQ 18 982 36430
Lucoli AQ 19 1011 37441
Avezzano AQ 19 42515 79956
Castelvecchio Calvisio AQ 19 153 80109
Castel di Ieri AQ 20 303 80412
Santo Stefano di Sessanio AQ 20 111 80523

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km SE of L'Aquila (69753 inhabitants)
55 Km S of Teramo (54892 inhabitants)
56 Km W of Chieti (51815 inhabitants)
63 Km SW of Montesilvano (53738 inhabitants)
65 Km E of Tivoli (56533 inhabitants)
65 Km W of Pescara (121014 inhabitants)
69 Km E of Guidonia Montecelio (88673 inhabitants)
83 Km SE of Terni (111501 inhabitants)
83 Km NE of Velletri (53303 inhabitants)
92 Km E of Roma (2864731 inhabitants)
95 Km NE of Latina (125985 inhabitants)
98 Km NE of Aprilia (73446 inhabitants)
Recent and historical seismicity
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
Reviewed
Rev100
ML 1.5 2021-05-27
00:00:11
42.1892 13.5213 14 2021-05-27
00:07:16
Sala Sismica INGV-Roma 90520511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-27 00:00:11 ± 0.08
Latitude 42.1892 ± 0.0027
Longitude 13.5213 ± 0.0036
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 90520511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 360
Semi-minor axis of confidence ellipse (meter) 17
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 222
Circular confidence region, given by single value of horizontal uncertainty (meter) 360
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 46
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.46675
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 90520511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-27 00:07:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2021-05-27T00:00:29.27 3.0 undecidable manual S -0.58 0
IV.SMA1.EHZ. 2021-05-27T00:00:27.97 0.6 undecidable manual S 343 0.4623 94 0.05 47
IV.NRCA.HHZ. 2021-05-27T00:00:25.76 3.0 negative manual P 0.05 0
IV.GIUL.HHZ. 2021-05-27T00:00:25.15 3.0 negative manual P 0.45 0
IV.LRP.EHZ. 2021-05-27T00:00:24.16 3.0 positive manual P 1.71 0
IV.INTR.HHZ. 2021-05-27T00:00:24.01 0.3 undecidable manual S 122 0.3354 97 -0.17 70
IV.VCEL.EHZ. 2021-05-27T00:00:24.32 0.3 undecidable manual S 49 0.313 98 0.79 59
IV.VVLD.HHZ. 2021-05-27T00:00:23.91 0.3 undecidable manual S 167 0.3283 97 -0.06 72
IV.FIAM.HHZ. 2021-05-27T00:00:23.44 0.3 undecidable manual S 285 0.3094 98 0.02 72
IV.SMA1.EHZ. 2021-05-27T00:00:21.12 0.6 undecidable manual P 343 0.4623 94 0.04 47
IV.CERT.HHZ. 2021-05-27T00:00:21.22 0.6 positive manual P 239 0.4667 94 0.06 46
IV.GIGS.HJZ. 2021-05-27T00:00:21.94 0.3 undecidable manual S 8 0.2671 100 -0.23 69
IV.RM33.EHZ. 2021-05-27T00:00:20.14 1.0 negative manual P 325 0.3921 96 0.25 23
IV.PTQR.HHZ. 2021-05-27T00:00:20.10 0.3 undecidable manual S 208 0.1898 108 0.15 71
IV.TERO.HHZ. 2021-05-27T00:00:20.49 0.6 undecidable manual P 8 0.438 95 -0.18 45
IV.T0110.HHZ. 2021-05-27T00:00:19.99 0.3 undecidable manual S 78 0.1934 108 -0.06 73
MN.AQU.HNZ. 2021-05-27T00:00:19.84 0.3 undecidable manual S 332 0.1862 109 -0.01 74
IV.FIAM.HHZ. 2021-05-27T00:00:18.43 0.3 undecidable manual P 285 0.3094 98 -0.06 72
IV.VCEL.EHZ. 2021-05-27T00:00:18.75 0.3 undecidable manual P 49 0.313 98 0.2 70
IV.VVLD.HHZ. 2021-05-27T00:00:18.68 0.3 positive manual P 167 0.3283 97 -0.12 71
IV.INTR.HHZ. 2021-05-27T00:00:18.73 0.3 undecidable manual P 122 0.3354 97 -0.19 70
IV.FAGN.HHZ. 2021-05-27T00:00:17.59 0.3 undecidable manual S 31 0.0899 136 0.18 74
IV.GIGS.HJZ. 2021-05-27T00:00:17.51 0.6 undecidable manual P 8 0.2671 100 -0.26 46
IV.T0110.HHZ. 2021-05-27T00:00:16.39 0.3 positive manual P 78 0.1934 108 -0.15 72
MN.AQU.HNZ. 2021-05-27T00:00:16.33 0.6 undecidable manual P 332 0.1862 109 -0.09 49
IV.PTQR.HHZ. 2021-05-27T00:00:16.55 0.1 undecidable manual P 208 0.1898 108 0.07 97
IV.FAGN.HHZ. 2021-05-27T00:00:14.99 0.1 undecidable manual P 31 0.0899 136 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FAGN.HHN. ML:2.1 0.00140811095 0.2176 AML other m 2021-05-27T00:00:17.95
IV.FAGN.HHE. ML:2.1 0.0012608669 0.1664 AML other m 2021-05-27T00:00:18.52
IV.T0110.HHN. ML:2.2 0.0010105 0.34 AML other m 2021-05-27T00:00:20.18
IV.T0110.HHE. ML:2 0.00069587305 0.2688 AML other m 2021-05-27T00:00:20.17
IV.PTQR.HHE. ML:1.6 0.00022730895 0.1792 AML other m 2021-05-27T00:00:21.46
IV.PTQR.HHN. ML:1.4 0.00017 0.18 AML other m 2021-05-27T00:00:21.88
IV.FIAM.HHN. ML:1.1 5.2090965E-5 0.2176 AML other m 2021-05-27T00:00:23.96
IV.VCEL.EHE. ML:2.3 0.000809 0.1 AML other m 2021-05-27T00:00:24.77
IV.VCEL.EHN. ML:2.1 0.000496 0.1 AML other m 2021-05-27T00:00:24.78
IV.INTR.HHN. ML:1.6 0.0001345 1.86 AML other m 2021-05-27T00:00:25.06
IV.INTR.HHE. ML:1.5 0.0001258099 0.2048 AML other m 2021-05-27T00:00:25.06
IV.VVLD.HHN. ML:1.2 5.5562485E-5 0.3456 AML other m 2021-05-27T00:00:27.21
IV.RM33.EHN. ML:1.4 8.1275335E-5 0.3584 AML other m 2021-05-27T00:00:30.47
IV.VVLD.HHE. ML:1.1 4.735E-5 1.44 AML other m 2021-05-27T00:00:29.91
IV.CERT.HHN. ML:1.2 3.69E-5 0.88 AML other m 2021-05-27T00:00:29.88
IV.FIAM.HHE. ML:1 3.645E-5 0.6 AML other m 2021-05-27T00:00:30.88
IV.RM33.EHE. ML:1.5 0.00010155 0.46 AML other m 2021-05-27T00:00:30.88
IV.SMA1.EHN. ML:0 6.3261985E-5 0.4992 AML other m 2021-05-27T00:00:31.74
IV.CERT.HHE. ML:1.1 2.995E-5 0.34 AML other m 2021-05-27T00:00:32.58
IV.SMA1.EHE. ML:0 5.8130075E-5 0.4096 AML other m 2021-05-27T00:00:34.34
IV.NRCA.HHE. ML:1.3 3.0741925E-5 0.26 AML other m 2021-05-27T00:00:38.41
IV.NRCA.HHN. ML:1.2 2.595E-5 0.62 AML other m 2021-05-27T00:00:39.61
IV.GIUL.HHN. ML:1.3 2.81E-5 0.34 AML other m 2021-05-27T00:00:40.27
IV.GIUL.HHE. ML:1.5 4.395E-5 0.48 AML other m 2021-05-27T00:00:40.31
IV.FIAM.HNE. ML:2.7 0.002163448 1.3184 AML other m 2021-05-27T00:00:30.70
IV.FIAM.HNN. ML:1.5 0.0001352786 0.8576 AML other m 2021-05-27T00:00:41.71
IV.VVLD.HNE. ML:1.7 0.00018118435 2.8672 AML other m 2021-05-27T23:59:57.49
IV.VVLD.HNN. ML:1.6 0.0001431366 0.6912 AML other m 2021-05-27T00:00:32.38
IV.INTR.HNE. ML:1.7 0.000178123705 1.0752 AML other m 2021-05-27T00:00:47.16
IV.INTR.HNN. ML:1.6 0.0001570643 0.7424 AML other m 2021-05-27T00:00:05.58
IV.RM33.HNE. ML:1.6 0.00013214791 0.8448 AML other m 2021-05-27T00:00:33.45
IV.RM33.HNN. ML:1.7 0.000152501315 0.9856 AML other m 2021-05-27T00:00:45.18
IV.TERO.HNE. ML:1.6 0.000115633995 0.896 AML other m 2021-05-27T00:00:06.00
IV.TERO.HNN. ML:1.9 0.0001910102 0.7936 AML other m 2021-05-27T00:00:40.19
IV.TERO.HHE. ML:4 0.024182332 1.0624 AML other m 2021-05-27T00:00:15.50
IV.TERO.HHN. ML:1.3 5.6618565E-5 0.1024 AML other m 2021-05-27T00:00:29.99
IV.CERT.HNE. ML:1.8 0.00015813245 0.7424 AML other m 2021-05-27T00:00:45.62
IV.CERT.HNN. ML:1.9 0.00019989935 0.9728 AML other m 2021-05-27T00:00:45.15
IV.NRCA.HNE. ML:1.8 9.178431E-5 0.88 AML other m 2021-05-27T00:00:54.01
IV.NRCA.HNN. ML:2 0.000151769685 0.6 AML other m 2021-05-27T00:00:44.46
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download