Earthquake with magnitude of ML 2.1 on date 04-03-2018 and time 09:27:57 (Italy) in region 1 km N Sant'Apollinare (FR)

A magnitude ML 2.1 earthquake occured in region: 1 km N Sant'Apollinare (FR), on

  • 04-03-2018 08:27:57 (UTC)
  • 04-03-2018 09:27:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.4080, 13.8320 at 8 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
Sant'Apollinare FR 1 1919 1919
Sant'Ambrogio sul Garigliano FR 4 966 2885
Sant'Andrea del Garigliano FR 5 1505 4390
Vallemaio FR 5 937 5327
Pignataro Interamna FR 5 2595 7922
San Giorgio a Liri FR 5 3164 11086
Rocca d'Evandro CE 6 3283 14369
Castelnuovo Parano FR 7 883 15252
Coreno Ausonio FR 8 1644 16896
Ausonia FR 9 2619 19515
Cassino FR 10 36142 55657
Cervaro FR 10 8109 63766
San Vittore del Lazio FR 11 2636 66402
San Pietro Infine CE 11 944 67346
Castelforte LT 12 4386 71732
Santi Cosma e Damiano LT 12 6897 78629
Piedimonte San Germano FR 12 6535 85164
Esperia FR 12 3828 88992
Villa Santa Lucia FR 13 2632 91624
Galluccio CE 13 2154 93778
Mignano Monte Lungo CE 13 3250 97028
Spigno Saturnia LT 14 2961 99989
Aquino FR 14 5370 105359
Pontecorvo FR 15 13242 118601
Sant'Elia Fiumerapido FR 15 6166 124767
Conca della Campania CE 16 1239 126006
Terelle FR 17 422 126428
Viticuso FR 17 353 126781
Minturno LT 18 19783 146564
Conca Casale IS 18 200 146764
Tora e Piccilli CE 18 910 147674
Vallerotonda FR 18 1581 149255
Castrocielo FR 18 3965 153220
Roccamonfina CE 18 3511 156731
Acquafondata FR 18 263 156994
Belmonte Castello FR 19 739 157733
Colle San Magno FR 20 699 158432
Venafro IS 20 11280 169712
Sessa Aurunca CE 20 21727 191439

Municipalities with at least 50000 inhabitants

An earthquake occurred to
56 Km NW of Caserta (76326 inhabitants)
58 Km NW of Aversa (53047 inhabitants)
62 Km NW of Giugliano in Campania (122974 inhabitants)
64 Km NW of Marano di Napoli (59874 inhabitants)
66 Km NW of Pozzuoli (81661 inhabitants)
67 Km NW of Afragola (65057 inhabitants)
68 Km NW of Casoria (77642 inhabitants)
68 Km NW of Acerra (59573 inhabitants)
72 Km NW of Napoli (974074 inhabitants)
78 Km E of Latina (125985 inhabitants)
78 Km NW of Portici (55274 inhabitants)
79 Km NW of Ercolano (53709 inhabitants)
82 Km NW of Torre del Greco (86275 inhabitants)
85 Km W of Benevento (60091 inhabitants)
93 Km E of Velletri (53303 inhabitants)
94 Km NW of Scafati (50787 inhabitants)
96 Km NW of Castellammare di Stabia (66466 inhabitants)
98 Km NW of Avellino (54857 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 2.1 2018-03-04
08:27:57
41.4075 13.8322 8 2019-04-24
14:49:20
Bollettino Sismico Italiano INGV 54589761
Reviewed
Rev100
ML 2.1 2018-03-04
08:27:57
41.4042 13.8218 7 2018-03-04
08:34:47
Sala Sismica INGV-Roma 54309341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-03-04 08:27:57 ± 0.07
Latitude 41.4075 ± 0.0036
Longitude 13.8322 ± 0.0060
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 54589761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 424
Semi-minor axis of confidence ellipse (meter) 332
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 242
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.08454
Epicentral distance of station farthest from the epicenter (degree) 0.60614
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 54589761
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-04-09 08:04:57

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 54309341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-03-04 08:34:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RNI2.HHZ. 2018-03-04T08:28:12.18 0.3 undecidable manual S 39 42.2244 50 0.3 70
IV.MIDA.HHZ. 2018-03-04T08:28:11.90 0.3 undecidable manual S 53 43.623 50 -0.35 69
IV.POFI.HHZ. 2018-03-04T08:28:10.18 0.3 undecidable manual S 344 35.8419 50 0.02 75
IV.LRP.EHZ. 2018-03-04T08:28:09.24 0.6 undecidable manual S 323 33.5442 104 -0.26 48
IV.INTR.HHZ. 2018-03-04T08:28:09.65 0.1 undecidable manual P 5 67.2771 50 -0.02 94
IV.CERA.HHZ. 2018-03-04T08:28:07.06 0.3 undecidable manual S 36 26.1516 108 0.01 76
IV.VVLD.HHZ. 2018-03-04T08:28:07.55 0.1 undecidable manual P 341 54.1014 50 -0.09 95
IV.MODR.HHZ. 2018-03-04T08:28:07.92 0.6 undecidable manual S 172 29.2485 106 -0.16 49
IV.GIUL.HHZ. 2018-03-04T08:28:07.44 0.1 undecidable manual P 289 50.8158 50 0.3 92
IV.MIDA.HHZ. 2018-03-04T08:28:05.78 0.1 undecidable manual P 53 43.623 50 -0.25 94
IV.RNI2.HHZ. 2018-03-04T08:28:05.82 0.6 negative manual P 39 42.2244 50 0.01 50
IV.LRP.EHZ. 2018-03-04T08:28:04.22 0.1 undecidable manual P 323 33.5442 104 -0.22 97
IV.VAGA.HHZ. 2018-03-04T08:28:04.77 0.1 undecidable manual P 88 33.4443 104 0.34 94
IV.POFI.HHZ. 2018-03-04T08:28:04.96 0.1 undecidable manual P 344 35.8419 50 0.14 98
IV.MODR.HHZ. 2018-03-04T08:28:03.53 0.1 positive manual P 172 29.2485 106 -0.09 100
IV.CERA.HHZ. 2018-03-04T08:28:02.86 0.3 positive manual P 36 26.1516 108 -0.16 74
IV.MCI.EHZ. 2018-03-04T08:28:01.83 0.6 undecidable manual S 350 9.3795 131 -0.04 52
IV.MCI.EHZ. 2018-03-04T08:28:00.28 0.1 positive manual P 350 9.3795 131 0.25 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCI.EHE. ML:3.0 0.01445 0.2 AML other m 2018-03-04T08:28:03.02
IV.MCI.EHN. ML:3.0 0.016399999999999998 0.2 AML other m 2018-03-04T08:28:03.95
IV.CERA.HNN. ML:2.4 0.00156 0.34 AML other m 2018-03-04T08:28:08.79
IV.CERA.HHN. ML:2.4 0.0016099999999999999 0.34 AML other m 2018-03-04T08:28:08.79
IV.CERA.HHE. ML:2.5 0.00173 0.38 AML other m 2018-03-04T08:28:10.24
IV.CERA.HNE. ML:2.5 0.00171 0.38 AML other m 2018-03-04T08:28:10.24
IV.MODR.HHN. ML:2.2 0.0007775000000000001 0.7 AML other m 2018-03-04T08:28:11.57
IV.MODR.HHE. ML:2.0 0.0005769999999999999 0.6 AML other m 2018-03-04T08:28:13.31
IV.LRP.EHN. ML:2.1 0.0005875 0.74 AML other m 2018-03-04T08:28:13.45
IV.LRP.EHE. ML:2.0 0.0004485 1.66 AML other m 2018-03-04T08:28:14.94
IV.POFI.HHE. ML:1.9 0.000332 0.34 AML other m 2018-03-04T08:28:14.26
IV.POFI.HNE. ML:1.9 0.0003105 0.36 AML other m 2018-03-04T08:28:14.44
IV.POFI.HHN. ML:1.7 0.00020099999999999998 0.36 AML other m 2018-03-04T08:28:17.61
IV.POFI.HNN. ML:1.7 0.00020400000000000003 0.36 AML other m 2018-03-04T08:28:17.61
IV.RNI2.HHE. ML:2.2 0.00046599999999999994 1.26 AML other m 2018-03-04T08:28:17.14
IV.RNI2.HHN. ML:2.2 0.000515 0.64 AML other m 2018-03-04T08:28:18.03
IV.MIDA.HHN. ML:2.0 0.00027949999999999996 1.32 AML other m 2018-03-04T08:28:18.20
IV.MIDA.HHE. ML:2.0 0.0003165 0.84 AML other m 2018-03-04T08:28:19.71
IV.VVLD.HHN. ML:2.0 0.0002515 0.28 AML other m 2018-03-04T08:28:21.85
IV.INTR.HHN. ML:2.2 0.000285 0.7 AML other m 2018-03-04T08:28:25.63
IV.VVLD.HHE. ML:1.9 0.0001855 0.36 AML other m 2018-03-04T08:28:26.12
IV.INTR.HHE. ML:1.9 0.0001305 0.98 AML other m 2018-03-04T08:28:28.25
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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