Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 07-03-2021 and time 08:03:42 (UTC) in region 1 km E Pizzoli (AQ)

A magnitude ML 1.8 earthquake occured in region: 1 km E Pizzoli (AQ), on

  • 07-03-2021 08:03:42 (UTC)
  • 07-03-2021 09:03:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4350, 13.3040 at 12 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.

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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
Pizzoli AQ 1 4326 4326
Barete AQ 3 737 5063
Cagnano Amiterno AQ 7 1369 6432
Scoppito AQ 8 3727 10159
Capitignano AQ 10 665 10824
Montereale AQ 11 2581 13405
L'Aquila AQ 12 69753 83158
Campotosto AQ 15 542 83700
Tornimparte AQ 16 3187 86887
Lucoli AQ 16 1011 87898
Borbona RI 17 617 88515
Antrodoco RI 18 2588 91103
Crognaleto TE 19 1297 92400
Posta RI 20 694 93094

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km NW of L'Aquila (69753 inhabitants)
41 Km SW of Teramo (54892 inhabitants)
56 Km E of Terni (111501 inhabitants)
67 Km NE of Tivoli (56533 inhabitants)
68 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
72 Km W of Chieti (51815 inhabitants)
75 Km W of Pescara (121014 inhabitants)
76 Km SE of Foligno (57155 inhabitants)
91 Km NE of Roma (2864731 inhabitants)
94 Km NE of Velletri (53303 inhabitants)
98 Km E of Viterbo (67173 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.8 2021-03-07
08:03:42		 42.4347 13.3045 12 2021-07-12
16:55:02		 Bollettino Sismico Italiano INGV 88208191
Reviewed
Rev100 		ML 1.7 2021-03-07
08:03:10		 42.8957 13.0053 11 2021-03-07
08:08:57		 Sala Sismica INGV-Roma 87861601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-07 08:03:42 ± 0.09
Latitude 42.4347 ± 0.0036
Longitude 13.3045 ± 0.0061
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 88208191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 500
Semi-minor axis of confidence ellipse (meter) 54
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.09982
Epicentral distance of station farthest from the epicenter (degree) 0.66100
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 5
Type of magnitude ML
Reference to an origin 88208191
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-22 15:58:30

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 87861601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-07 08:08:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-03-07T08:04:05.35 0.6 undecidable manual S 354 73.371 91 1 32
IV.MC2.EHZ. 2021-03-07T08:04:00.16 0.6 undecidable manual S 350 53.7018 91 1.05 32
IV.GAVE.EHN. 2021-03-07T08:03:56.26 0.6 undecidable manual S 311 44.0226 92 -0.27 45
IV.CSP1.EHZ. 2021-03-07T08:03:55.12 0.3 undecidable manual P 354 73.371 91 0.09 66
IV.MTRA.EHE. 2021-03-07T08:03:54.00 0.6 undecidable manual S 12 36.5412 93 -0.52 44
IV.TERO.HHN. 2021-03-07T08:03:52.96 0.6 undecidable manual S 49 32.1456 93 -0.4 45
IV.MC2.EHZ. 2021-03-07T08:03:52.25 0.3 undecidable manual P 350 53.7018 91 0.24 66
IV.LNSS.HNZ. 2021-03-07T08:03:52.27 0.6 undecidable manual S 311 28.5492 94 -0.12 47
IV.FIAM.HNN. 2021-03-07T08:03:51.19 0.6 undecidable manual S 220 24.0537 95 0 47
IV.GIGS.HHN. 2021-03-07T08:03:50.56 0.6 undecidable manual S 85 22.0668 97 -0.11 48
IV.SMA1.EHN. 2021-03-07T08:03:50.90 0.3 undecidable manual S 7 21.867 97 0.28 69
IV.GAVE.EHN. 2021-03-07T08:03:50.71 0.3 undecidable manual P 311 44.0226 92 0.19 68
IV.T1299.HNN. 2021-03-07T08:03:50.90 0.6 undecidable manual S 355 22.2555 96 0.19 47
IV.CAMP.HHE. 2021-03-07T08:03:48.65 0.6 undecidable manual S 37 14.0748 111 0.05 49
IV.TERO.HHN. 2021-03-07T08:03:48.38 0.1 undecidable manual P 49 32.1456 93 -0.31 91
IV.FAGN.HHZ. 2021-03-07T08:03:48.55 0.3 undecidable manual P 129 29.5482 94 0.26 70
IV.MTRA.EHE. 2021-03-07T08:03:48.98 0.1 undecidable manual P 12 36.5412 93 -0.38 89
IV.LNSS.HNZ. 2021-03-07T08:03:48.04 0.3 undecidable manual P 311 28.5492 94 -0.09 71
IV.GIGS.HHN. 2021-03-07T08:03:47.03 0.3 undecidable manual P 85 22.0668 97 -0.1 72
IV.FIAM.HNN. 2021-03-07T08:03:47.30 0.1 undecidable manual P 220 24.0537 95 -0.13 93
MN.AQU.HNN. 2021-03-07T08:03:47.99 0.6 undecidable manual S 137 12.1767 118 -0.13 48
IV.SMA1.EHN. 2021-03-07T08:03:47.10 0.1 undecidable manual P 7 21.867 97 -0.01 98
IV.RM33.HNE. 2021-03-07T08:03:47.73 0.3 undecidable manual S 318 11.0778 122 -0.14 73
IV.T1299.HNN. 2021-03-07T08:03:47.14 0.1 undecidable manual P 355 22.2555 96 -0.02 98
IV.CAMP.HHE. 2021-03-07T08:03:46.02 0.3 undecidable manual P 37 14.0748 111 0.08 73
IV.RM33.HNE. 2021-03-07T08:03:45.55 0.1 positive manual P 318 11.0778 122 0.03 100
MN.AQU.HNN. 2021-03-07T08:03:45.77 0.1 undecidable manual P 137 12.1767 118 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:2.0 0.0002802599 0.1408 AML other m 2021-03-07T08:03:16.49
IV.GAVE.EHE. ML:2.0 0.000329 0.22 AML other m 2021-03-07T08:03:16.57
IV.GAVE.HNE. ML:2.0 0.00031756704999999995 0.2304 AML other m 2021-03-07T08:03:16.56
IV.CSP1.EHE. ML:1.3 0.000027647495 0.3008 AML other m 2021-03-07T08:03:21.05
IV.CSP1.EHN. ML:1.0 0.000016975684999999996 0.3392 AML other m 2021-03-07T08:03:20.91
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