Earthquake with magnitude of ML 1.2 on date 03-12-2020 and time 17:47:28 (Italy) in region 4 km NE Accumoli (RI)

A magnitude ML 1.2 earthquake occured in region: 4 km NE Accumoli (RI), on

  • 03-12-2020 16:47:28 (UTC)
  • 03-12-2020 17:47:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.72, 13.28 at 12 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
Accumoli RI 4 667 667
Arquata del Tronto AP 6 1178 1845
Amatrice RI 10 2657 4502
Acquasanta Terme AP 12 2916 7418
Montegallo AP 14 523 7941
Cittareale RI 15 482 8423
Norcia PG 17 4957 13380
Valle Castellana TE 18 977 14357
Campotosto AQ 20 542 14899
Montemonaco AP 20 604 15503

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of Teramo (54892 inhabitants)
42 Km N of L'Aquila (69753 inhabitants)
54 Km E of Foligno (57155 inhabitants)
55 Km E of Terni (111501 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
82 Km W of Pescara (121014 inhabitants)
84 Km NW of Chieti (51815 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km NE of Tivoli (56533 inhabitants)
Recent and historical Seismicity
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
Reviewed
Rev100
ML 1.2 2020-12-03
16:47:28
42.72 13.28 12 2020-12-03
17:15:06
Sala Sismica INGV-Roma 85178961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-03 16:47:28 ± 0.06
Latitude 42.72 ± 0.00
Longitude 13.28 ± 0.00
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85178961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 406
Semi-minor axis of confidence ellipse (meter) 148
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
Circular confidence region, given by single value of horizontal uncertainty (meter) 410
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 31
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.25721
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 85178961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-03 17:15:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.RORO.HHZ. 2020-12-03T16:49:08.77 3.0 undecidable manual Sn 3.22 0
IV.HAGA.HHZ. 2020-12-03T16:49:07.75 3.0 undecidable manual Pg 17.690001 0
IV.ZONE.HHZ. 2020-12-03T16:49:01.65 3.0 undecidable manual Sn 4.7 0
OX.MPRI.HHZ. 2020-12-03T16:48:52.30 3.0 undecidable manual Sn 1.82 0
IV.CAGR.HHZ. 2020-12-03T16:48:45.37 3.0 undecidable manual Pn 1.39 0
XK.ALB1.HHZ. 2020-12-03T16:48:41.09 3.0 positive manual Pn 6.89 0
IV.SERS.HHZ. 2020-12-03T16:48:38.57 3.0 undecidable manual Pn 3.99 0
IV.AGLI.HHZ. 2020-12-03T16:48:20.96 3.0 undecidable manual Pn 4.58 0
IV.CERA.HHZ. 2020-12-03T16:48:09.95 3.0 undecidable manual Sn -0.88 0
IV.MNTV.HNZ. 2020-12-03T16:48:05.39 3.0 undecidable manual Pn 0.01 0
IT.FIE.HGZ. 2020-12-03T16:47:48.62 3.0 undecidable manual Pn -0.8 0
IV.PE3.EHZ. 2020-12-03T16:47:39.96 3.0 undecidable manual P 0.62 0
IV.TERO.HHZ. 2020-12-03T16:47:38.72 0.3 undecidable manual S 113 0.2572 94 -0.11 73
IV.MC2.EHZ. 2020-12-03T16:47:37.37 0.3 undecidable manual S 340 0.1996 97 0.23 72
IV.LNSS.HHZ. 2020-12-03T16:47:37.45 0.3 undecidable manual S 236 0.214 96 -0.12 75
IV.CAMP.HHE. 2020-12-03T16:47:37.40 0.3 undecidable manual S 153 0.2095 96 -0.02 75
IV.MMO1.EHZ. 2020-12-03T16:47:36.55 0.3 undecidable manual S 11 0.179 99 0.02 76
IV.NRCA.HHZ. 2020-12-03T16:47:35.69 0.3 undecidable manual S 312 0.1655 101 -0.43 70
IV.T1299.EHE. 2020-12-03T16:47:34.11 0.3 undecidable manual S 180 0.089 128 0.05 77
IV.SMA1.EHZ. 2020-12-03T16:47:34.29 0.3 undecidable manual S 157 0.1007 123 -0.06 76
IV.TERO.HHZ. 2020-12-03T16:47:34.25 0.6 undecidable manual P 113 0.2572 94 -0.31 47
IV.MMO1.EHZ. 2020-12-03T16:47:33.35 0.3 undecidable manual P 11 0.179 99 0.11 74
IV.LNSS.HHZ. 2020-12-03T16:47:33.82 0.1 undecidable manual P 236 0.214 96 -0.02 100
IV.CAMP.HHE. 2020-12-03T16:47:33.81 0.1 undecidable manual P 153 0.2095 96 0.06 100
IV.ARVD.HHZ. 2020-12-03T16:47:33.44 3.0 negative manual P -0.34 0
IV.MTRA.EHZ. 2020-12-03T16:47:33.96 0.3 undecidable manual S 68 0.0908 127 -0.14 74
IV.MC2.EHZ. 2020-12-03T16:47:33.63 0.1 undecidable manual P 340 0.1996 97 0.04 100
IV.T1299.EHE. 2020-12-03T16:47:32.06 0.1 undecidable manual P 180 0.089 128 0.24 98
IV.SMA1.EHZ. 2020-12-03T16:47:32.12 0.1 undecidable manual P 157 0.1007 123 0.14 100
IV.NRCA.HHZ. 2020-12-03T16:47:32.88 0.3 undecidable manual P 312 0.1655 101 -0.12 75
IV.MTRA.EHZ. 2020-12-03T16:47:31.98 0.3 undecidable manual P 68 0.0908 127 0.14 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.2 0.000159977615 0.1792 AML other m 2020-12-03T16:47:34.05
IV.MTRA.EHN. ML:0.9 9.1780215E-5 0.1152 AML other m 2020-12-03T16:47:34.93
IV.MTRA.HNE. ML:1.1 0.000154113625 0.1664 AML other m 2020-12-03T16:47:34.80
IV.MTRA.HNN. ML:1.2 0.00016555885 0.256 AML other m 2020-12-03T16:47:34.87
IV.SMA1.EHE. ML:0.9 9.1918055E-5 3.1616 AML other m 2020-12-03T16:47:35.26
IV.SMA1.EHN. ML:0.6 4.7106605E-5 0.8448 AML other m 2020-12-03T16:47:34.76
IV.NRCA.HNE. ML:1.2 0.0001243106 0.1024 AML other m 2020-12-03T16:47:36.07
IV.NRCA.HNN. ML:1.5 0.00024906555 1.1264 AML other m 2020-12-03T16:47:40.12
IV.NRCA.HHE. ML:1.3 0.0001406662 0.1664 AML other m 2020-12-03T16:47:36.08
IV.NRCA.HHN. ML:1 7.0131225E-5 0.0512 AML other m 2020-12-03T16:47:35.82
IV.LNSS.HNE. ML:1.3 0.000116919465 1.536 AML other m 2020-12-03T16:47:36.75
IV.LNSS.HNN. ML:1.5 0.0001923186 1.4208 AML other m 2020-12-03T16:47:39.23
IV.LNSS.HHE. ML:0.9 4.5957305E-5 0.1408 AML other m 2020-12-03T16:47:39.83
IV.LNSS.HHN. ML:0.9 4.560905E-5 0.1408 AML other m 2020-12-03T16:47:38.80
IV.TERO.HHE. ML:0.6 1.844712E-5 0.1664 AML other m 2020-12-03T16:47:39.68
IV.TERO.HNE. ML:1.4 0.000107701395 0.4608 AML other m 2020-12-03T16:47:42.83
IV.TERO.HNN. ML:1.6 0.00018261475 0.8192 AML other m 2020-12-03T16:47:43.59
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download